1012938390 has 48 divisors (see below), whose sum is σ = 2724462000. Its totient is φ = 260801856.

The previous prime is 1012938371. The next prime is 1012938413. The reversal of 1012938390 is 938392101.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 191440 + ... + 196659.

It is an arithmetic number, because the mean of its divisors is an integer number (56759625).

Almost surely, 2^1012938390 is an apocalyptic number.

1012938390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1012938390 is an abundant number, since it is smaller than the sum of its proper divisors (1711523610).

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

1012938390 is a wasteful number, since it uses less digits than its factorization.

1012938390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388141 (or 388138 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 1012938390 is about 31826.6930421620. The cubic root of 1012938390 is about 1004.2943290074.

The spelling of 1012938390 in words is "one billion, twelve million, nine hundred thirty-eight thousand, three hundred ninety".