1057023969 has 8 divisors (see below), whose sum is σ = 1410532032. Its totient is φ = 704099280.

The previous prime is 1057023923. The next prime is 1057023973. The reversal of 1057023969 is 9693207501.

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

It is not a de Polignac number, because 1057023969 - 2¹¹ = 1057021921 is a prime.

It is a super-2 number, since 2×1057023969² = 2234599342081025922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1057023969.

It is not an unprimeable number, because it can be changed into a prime (1057023169) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 141597 + ... + 148874.

It is an arithmetic number, because the mean of its divisors is an integer number (176316504).

Almost surely, 2^1057023969 is an apocalyptic number.

It is an amenable number.

1057023969 is a deficient number, since it is larger than the sum of its proper divisors (353508063).

1057023969 is a wasteful number, since it uses less digits than its factorization.

1057023969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291687.

The product of its (nonzero) digits is 102060, while the sum is 42.

The square root of 1057023969 is about 32511.9050349253. The cubic root of 1057023969 is about 1018.6577143799.

The spelling of 1057023969 in words is "one billion, fifty-seven million, twenty-three thousand, nine hundred sixty-nine".