1057423813 has 8 divisors (see below), whose sum is σ = 1080391680. Its totient is φ = 1034475600.

The previous prime is 1057423789. The next prime is 1057423819. The reversal of 1057423813 is 3183247501.

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

It is a cyclic number.

It is not a de Polignac number, because 1057423813 - 2¹³ = 1057415621 is a prime.

It is a super-2 number, since 2×1057423813² = 2236290240598917938, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1057423819) 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, 170908 + ... + 176986.

It is an arithmetic number, because the mean of its divisors is an integer number (135048960).

Almost surely, 2^1057423813 is an apocalyptic number.

It is an amenable number.

1057423813 is a deficient number, since it is larger than the sum of its proper divisors (22967867).

1057423813 is an equidigital number, since it uses as much as digits as its factorization.

1057423813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9827.

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 1057423813 is about 32518.0536471665. The cubic root of 1057423813 is about 1018.7861418771.

The spelling of 1057423813 in words is "one billion, fifty-seven million, four hundred twenty-three thousand, eight hundred thirteen".