1057294738 has 4 divisors (see below), whose sum is σ = 1585942110. Its totient is φ = 528647368.

The previous prime is 1057294717. The next prime is 1057294739. The reversal of 1057294738 is 8374927501.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 956231929 + 101062809 = 30923^2 + 10053^2 .

It is a super-2 number, since 2×1057294738² = 2235744326004977288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1057294739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 264323683 + ... + 264323686.

Almost surely, 2^1057294738 is an apocalyptic number.

1057294738 is a deficient number, since it is larger than the sum of its proper divisors (528647372).

1057294738 is an equidigital number, since it uses as much as digits as its factorization.

1057294738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 528647371.

The product of its (nonzero) digits is 423360, while the sum is 46.

The square root of 1057294738 is about 32516.0689198433. The cubic root of 1057294738 is about 1018.7446872996.

The spelling of 1057294738 in words is "one billion, fifty-seven million, two hundred ninety-four thousand, seven hundred thirty-eight".