1057361730 has 32 divisors (see below), whose sum is σ = 2539712448. Its totient is φ = 281736000.

The previous prime is 1057361729. The next prime is 1057361731. The reversal of 1057361730 is 371637501.

It is an interprime number because it is at equal distance from previous prime (1057361729) and next prime (1057361731).

It is a super-2 number, since 2×1057361730² = 2236027656137185800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1057361691 and 1057361700.

It is not an unprimeable number, because it can be changed into a prime (1057361731) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25485 + ... + 52575.

It is an arithmetic number, because the mean of its divisors is an integer number (79366014).

Almost surely, 2^1057361730 is an apocalyptic number.

1057361730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1057361730 is an abundant number, since it is smaller than the sum of its proper divisors (1482350718).

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

1057361730 is a wasteful number, since it uses less digits than its factorization.

1057361730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28402.

The product of its (nonzero) digits is 13230, while the sum is 33.

The square root of 1057361730 is about 32517.0990403511. The cubic root of 1057361730 is about 1018.7662033129.

The spelling of 1057361730 in words is "one billion, fifty-seven million, three hundred sixty-one thousand, seven hundred thirty".