1057720210 has 16 divisors (see below), whose sum is σ = 1905408000. Its totient is φ = 422752176.

The previous prime is 1057720193. The next prime is 1057720241. The reversal of 1057720210 is 120277501.

It is a happy number.

It is a super-2 number, since 2×1057720210² = 2237544085284888200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28560 + ... + 54139.

It is an arithmetic number, because the mean of its divisors is an integer number (119088000).

Almost surely, 2^1057720210 is an apocalyptic number.

1057720210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1057720210 is a deficient number, since it is larger than the sum of its proper divisors (847687790).

1057720210 is a wasteful number, since it uses less digits than its factorization.

1057720210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83985.

The product of its (nonzero) digits is 980, while the sum is 25.

The square root of 1057720210 is about 32522.6107500613. The cubic root of 1057720210 is about 1018.8813219248.

Adding to 1057720210 its reverse (120277501), we get a palindrome (1177997711).

The spelling of 1057720210 in words is "one billion, fifty-seven million, seven hundred twenty thousand, two hundred ten".