1038157290 has 32 divisors (see below), whose sum is σ = 2768420160. Its totient is φ = 276841872.

The previous prime is 1038157271. The next prime is 1038157313. The reversal of 1038157290 is 927518301.

1038157290 is a `hidden beast` number, since 1 + 0 + 3 + 81 + 572 + 9 + 0 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1922244 + ... + 1922783.

It is an arithmetic number, because the mean of its divisors is an integer number (86513130).

Almost surely, 2^1038157290 is an apocalyptic number.

1038157290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1038157290 is an abundant number, since it is smaller than the sum of its proper divisors (1730262870).

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

1038157290 is a wasteful number, since it uses less digits than its factorization.

1038157290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3845043 (or 3845037 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 36.

The square root of 1038157290 is about 32220.4483209033. The cubic root of 1038157290 is about 1012.5606657752.

The spelling of 1038157290 in words is "one billion, thirty-eight million, one hundred fifty-seven thousand, two hundred ninety".