1457214978 has 32 divisors (see below), whose sum is σ = 3009934080. Its totient is φ = 470053760.

The previous prime is 1457214943. The next prime is 1457214991. The reversal of 1457214978 is 8794127541.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3933 + ... + 54128.

It is an arithmetic number, because the mean of its divisors is an integer number (94060440).

Almost surely, 2^1457214978 is an apocalyptic number.

1457214978 is an abundant number, since it is smaller than the sum of its proper divisors (1552719102).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1457214978 is a wasteful number, since it uses less digits than its factorization.

1457214978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58202.

The product of its digits is 564480, while the sum is 48.

The square root of 1457214978 is about 38173.4852744677. The cubic root of 1457214978 is about 1133.7253968997.

The spelling of 1457214978 in words is "one billion, four hundred fifty-seven million, two hundred fourteen thousand, nine hundred seventy-eight".