457420642 has 16 divisors (see below), whose sum is σ = 818243712. Its totient is φ = 187513920.

The previous prime is 457420637. The next prime is 457420657. The reversal of 457420642 is 246024754.

It is a junction number, because it is equal to n+sod(n) for n = 457420598 and 457420607.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 709959 + ... + 710602.

It is an arithmetic number, because the mean of its divisors is an integer number (51140232).

Almost surely, 2^457420642 is an apocalyptic number.

457420642 is a deficient number, since it is larger than the sum of its proper divisors (360823070).

457420642 is a wasteful number, since it uses less digits than its factorization.

457420642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1420593.

The product of its (nonzero) digits is 53760, while the sum is 34.

The square root of 457420642 is about 21387.3944649646. The cubic root of 457420642 is about 770.4987166676.

The spelling of 457420642 in words is "four hundred fifty-seven million, four hundred twenty thousand, six hundred forty-two".