1057941690 has 48 divisors (see below), whose sum is σ = 2749409568. Its totient is φ = 260415168.

The previous prime is 1057941667. The next prime is 1057941691. The reversal of 1057941690 is 961497501.

It is a super-2 number, since 2×1057941690² = 2238481238880112200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1057941691) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 99264 + ... + 109403.

It is an arithmetic number, because the mean of its divisors is an integer number (57279366).

Almost surely, 2^1057941690 is an apocalyptic number.

1057941690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1057941690 is an abundant number, since it is smaller than the sum of its proper divisors (1691467878).

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

1057941690 is a wasteful number, since it uses less digits than its factorization.

1057941690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208703 (or 208690 counting only the distinct ones).

The product of its (nonzero) digits is 68040, while the sum is 42.

The square root of 1057941690 is about 32526.0155875262. The cubic root of 1057941690 is about 1018.9524327548.

The spelling of 1057941690 in words is "one billion, fifty-seven million, nine hundred forty-one thousand, six hundred ninety".