1457789399 has 16 divisors (see below), whose sum is σ = 1632070944. Its totient is φ = 1290585600.

The previous prime is 1457789393. The next prime is 1457789401. The reversal of 1457789399 is 9939877541.

It is a cyclic number.

It is not a de Polignac number, because 1457789399 - 2²⁰ = 1456740823 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1457789393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 273827 + ... + 279099.

It is an arithmetic number, because the mean of its divisors is an integer number (102004434).

Almost surely, 2^1457789399 is an apocalyptic number.

1457789399 is a deficient number, since it is larger than the sum of its proper divisors (174281545).

1457789399 is a wasteful number, since it uses less digits than its factorization.

1457789399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5938.

The product of its digits is 17146080, while the sum is 62.

The square root of 1457789399 is about 38181.0083549400. The cubic root of 1457789399 is about 1133.8743454384.

The spelling of 1457789399 in words is "one billion, four hundred fifty-seven million, seven hundred eighty-nine thousand, three hundred ninety-nine".