1044408457 has 8 divisors (see below), whose sum is σ = 1070691552. Its totient is φ = 1018164000.

The previous prime is 1044408427. The next prime is 1044408487. The reversal of 1044408457 is 7548044401.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1044408427) and next prime (1044408487).

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1044408457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1044408427) 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, 49582 + ... + 67432.

It is an arithmetic number, because the mean of its divisors is an integer number (133836444).

Almost surely, 2^1044408457 is an apocalyptic number.

It is an amenable number.

1044408457 is a deficient number, since it is larger than the sum of its proper divisors (26283095).

1044408457 is a wasteful number, since it uses less digits than its factorization.

1044408457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19319.

The product of its (nonzero) digits is 71680, while the sum is 37.

The square root of 1044408457 is about 32317.3089380907. The cubic root of 1044408457 is about 1014.5889466124.

The spelling of 1044408457 in words is "one billion, forty-four million, four hundred eight thousand, four hundred fifty-seven".