457637138 has 8 divisors (see below), whose sum is σ = 784520832. Its totient is φ = 196130196.

The previous prime is 457637123. The next prime is 457637149. The reversal of 457637138 is 831736754.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16344170 + ... + 16344197.

It is an arithmetic number, because the mean of its divisors is an integer number (98065104).

Almost surely, 2^457637138 is an apocalyptic number.

457637138 is a deficient number, since it is larger than the sum of its proper divisors (326883694).

457637138 is a wasteful number, since it uses less digits than its factorization.

457637138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32688376.

The product of its digits is 423360, while the sum is 44.

The square root of 457637138 is about 21392.4551653147. The cubic root of 457637138 is about 770.6202558410.

It can be divided in two parts, 4576 and 37138, that added together give a palindrome (41714).

The spelling of 457637138 in words is "four hundred fifty-seven million, six hundred thirty-seven thousand, one hundred thirty-eight".