1230654690 has 96 divisors (see below), whose sum is σ = 3247358400. Its totient is φ = 323326080.

The previous prime is 1230654683. The next prime is 1230654739. The reversal of 1230654690 is 964560321.

It is a happy number.

1230654690 is a `hidden beast` number, since 1 + 23 + 0 + 6 + 546 + 90 = 666.

It is a super-2 number, since 2×1230654690² = 3029021932037992200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3246921 + ... + 3247299.

It is an arithmetic number, because the mean of its divisors is an integer number (33826650).

Almost surely, 2^1230654690 is an apocalyptic number.

1230654690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1230654690, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1623679200).

1230654690 is an abundant number, since it is smaller than the sum of its proper divisors (2016703710).

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

1230654690 is a wasteful number, since it uses less digits than its factorization.

1230654690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 832 (or 829 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 1230654690 is about 35080.6882771704. The cubic root of 1230654690 is about 1071.6313340448.

The spelling of 1230654690 in words is "one billion, two hundred thirty million, six hundred fifty-four thousand, six hundred ninety".