1456457442 has 16 divisors (see below), whose sum is σ = 3177725472. Its totient is φ = 441350720.

The previous prime is 1456457441. The next prime is 1456457447. The reversal of 1456457442 is 2447546541.

It is a junction number, because it is equal to n+sod(n) for n = 1456457394 and 1456457403.

It is not an unprimeable number, because it can be changed into a prime (1456457441) 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, 11033703 + ... + 11033834.

It is an arithmetic number, because the mean of its divisors is an integer number (198607842).

Almost surely, 2^1456457442 is an apocalyptic number.

1456457442 is an abundant number, since it is smaller than the sum of its proper divisors (1721268030).

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

1456457442 is a wasteful number, since it uses less digits than its factorization.

1456457442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22067553.

The product of its digits is 537600, while the sum is 42.

The square root of 1456457442 is about 38163.5617048514. The cubic root of 1456457442 is about 1133.5289064067.

The spelling of 1456457442 in words is "one billion, four hundred fifty-six million, four hundred fifty-seven thousand, four hundred forty-two".