1057166738 has 16 divisors (see below), whose sum is σ = 1629689280. Its totient is φ = 513956016.

The previous prime is 1057166731. The next prime is 1057166753. The reversal of 1057166738 is 8376617501.

It is a super-2 number, since 2×1057166738² = 2235203023867121288, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1057166731) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135245 + ... + 142847.

It is an arithmetic number, because the mean of its divisors is an integer number (101855580).

Almost surely, 2^1057166738 is an apocalyptic number.

1057166738 is a deficient number, since it is larger than the sum of its proper divisors (572522542).

1057166738 is a wasteful number, since it uses less digits than its factorization.

1057166738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9521.

The product of its (nonzero) digits is 211680, while the sum is 44.

The square root of 1057166738 is about 32514.1006026616. The cubic root of 1057166738 is about 1018.7035746443.

The spelling of 1057166738 in words is "one billion, fifty-seven million, one hundred sixty-six thousand, seven hundred thirty-eight".