1057909570 has 8 divisors (see below), whose sum is σ = 1904237244. Its totient is φ = 423163824.

The previous prime is 1057909561. The next prime is 1057909571. The reversal of 1057909570 is 759097501.

It can be written as a sum of positive squares in 2 ways, for example, as 1036389249 + 21520321 = 32193^2 + 4639^2 .

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

It is a super-2 number, since 2×1057909570² = 2238345316595169800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1057909571) 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, 52895469 + ... + 52895488.

Almost surely, 2^1057909570 is an apocalyptic number.

1057909570 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1057909570 is a deficient number, since it is larger than the sum of its proper divisors (846327674).

1057909570 is a wasteful number, since it uses less digits than its factorization.

1057909570 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105790964.

The product of its (nonzero) digits is 99225, while the sum is 43.

The square root of 1057909570 is about 32525.5218251760. The cubic root of 1057909570 is about 1018.9421205660.

The spelling of 1057909570 in words is "one billion, fifty-seven million, nine hundred nine thousand, five hundred seventy".