1012124240 has 60 divisors (see below), whose sum is σ = 2499811356. Its totient is φ = 381026304.

The previous prime is 1012124227. The next prime is 1012124251. The reversal of 1012124240 is 424212101.

It can be written as a sum of positive squares in 6 ways, for example, as 8248384 + 1003875856 = 2872^2 + 31684^2 .

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1232 + ... + 45008.

Almost surely, 2^1012124240 is an apocalyptic number.

1012124240 is a gapful number since it is divisible by the number (10) 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 1012124240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1249905678).

1012124240 is an abundant number, since it is smaller than the sum of its proper divisors (1487687116).

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

1012124240 is a wasteful number, since it uses less digits than its factorization.

1012124240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43824 (or 43801 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 1012124240 is about 31813.9001067144. The cubic root of 1012124240 is about 1004.0251894444.

Adding to 1012124240 its reverse (424212101), we get a palindrome (1436336341).

The spelling of 1012124240 in words is "one billion, twelve million, one hundred twenty-four thousand, two hundred forty".