1457084642 has 48 divisors (see below), whose sum is σ = 2504989032. Its totient is φ = 631411200.

The previous prime is 1457084581. The next prime is 1457084677. The reversal of 1457084642 is 2464807541.

It can be written as a sum of positive squares in 12 ways, for example, as 82973881 + 1374110761 = 9109^2 + 37069^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1457084642.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 808142 + ... + 809942.

Almost surely, 2^1457084642 is an apocalyptic number.

1457084642 is a deficient number, since it is larger than the sum of its proper divisors (1047904390).

1457084642 is a wasteful number, since it uses less digits than its factorization.

1457084642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1911 (or 1882 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 41.

The square root of 1457084642 is about 38171.7780827669. The cubic root of 1457084642 is about 1133.6915950605.

The spelling of 1457084642 in words is "one billion, four hundred fifty-seven million, eighty-four thousand, six hundred forty-two".