1057672390 has 8 divisors (see below), whose sum is σ = 1903810320. Its totient is φ = 423068952.

The previous prime is 1057672379. The next prime is 1057672393. The reversal of 1057672390 is 932767501.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1057672390² = 2237341769136624200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1057672393) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52883610 + ... + 52883629.

It is an arithmetic number, because the mean of its divisors is an integer number (237976290).

Almost surely, 2^1057672390 is an apocalyptic number.

1057672390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1057672390 is a deficient number, since it is larger than the sum of its proper divisors (846137930).

1057672390 is a wasteful number, since it uses less digits than its factorization.

1057672390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105767246.

The product of its (nonzero) digits is 79380, while the sum is 40.

The square root of 1057672390 is about 32521.8755609205. The cubic root of 1057672390 is about 1018.8659670012.

The spelling of 1057672390 in words is "one billion, fifty-seven million, six hundred seventy-two thousand, three hundred ninety".