1299350052 has 576 divisors, whose sum is σ = 4922830080. Its totient is φ = 290304000.

The previous prime is 1299350033. The next prime is 1299350077. The reversal of 1299350052 is 2500539921.

It is a happy number.

1299350052 is a `hidden beast` number, since 12 + 9 + 93 + 500 + 52 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 1299349989 and 1299350016.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 12864802 + ... + 12864902.

It is an arithmetic number, because the mean of its divisors is an integer number (8546580).

Almost surely, 2^1299350052 is an apocalyptic number.

1299350052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1299350052, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2461415040).

1299350052 is an abundant number, since it is smaller than the sum of its proper divisors (3623480028).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1299350052 is a wasteful number, since it uses less digits than its factorization.

1299350052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169 (or 154 counting only the distinct ones).

The product of its (nonzero) digits is 24300, while the sum is 36.

The square root of 1299350052 is about 36046.4984707253. The cubic root of 1299350052 is about 1091.2109684791.

Adding to 1299350052 its reverse (2500539921), we get a palindrome (3799889973).

The spelling of 1299350052 in words is "one billion, two hundred ninety-nine million, three hundred fifty thousand, fifty-two".