457505742 has 32 divisors (see below), whose sum is σ = 960180480. Its totient is φ = 145048640.

The previous prime is 457505707. The next prime is 457505743. The reversal of 457505742 is 247505754.

It is a self number, because there is not a number n which added to its sum of digits gives 457505742.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (457505743) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15442 + ... + 33962.

It is an arithmetic number, because the mean of its divisors is an integer number (30005640).

Almost surely, 2^457505742 is an apocalyptic number.

457505742 is an abundant number, since it is smaller than the sum of its proper divisors (502674738).

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

457505742 is a wasteful number, since it uses less digits than its factorization.

457505742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18728.

The product of its (nonzero) digits is 196000, while the sum is 39.

The square root of 457505742 is about 21389.3838620938. The cubic root of 457505742 is about 770.5464957204.

The spelling of 457505742 in words is "four hundred fifty-seven million, five hundred five thousand, seven hundred forty-two".