1057919266 has 4 divisors (see below), whose sum is σ = 1586878902. Its totient is φ = 528959632.

The previous prime is 1057919251. The next prime is 1057919267. The reversal of 1057919266 is 6629197501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6629197501 = 11579 ⋅572519.

It can be written as a sum of positive squares in only one way, i.e., 961310025 + 96609241 = 31005^2 + 9829^2 .

It is a super-2 number, since 2×1057919266² = 2238386346747957512, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1057919267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 264479815 + ... + 264479818.

Almost surely, 2^1057919266 is an apocalyptic number.

1057919266 is a deficient number, since it is larger than the sum of its proper divisors (528959636).

1057919266 is an equidigital number, since it uses as much as digits as its factorization.

1057919266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 528959635.

The product of its (nonzero) digits is 204120, while the sum is 46.

The square root of 1057919266 is about 32525.6708770165. The cubic root of 1057919266 is about 1018.9452335078.

The spelling of 1057919266 in words is "one billion, fifty-seven million, nine hundred nineteen thousand, two hundred sixty-six".