457137644 has 24 divisors (see below), whose sum is σ = 861685440. Its totient is φ = 211501584.

The previous prime is 457137641. The next prime is 457137671. The reversal of 457137644 is 446731754.

It is not an unprimeable number, because it can be changed into a prime (457137641) 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, 66674 + ... + 73209.

It is an arithmetic number, because the mean of its divisors is an integer number (35903560).

Almost surely, 2^457137644 is an apocalyptic number.

It is an amenable number.

457137644 is a deficient number, since it is larger than the sum of its proper divisors (404547796).

457137644 is a wasteful number, since it uses less digits than its factorization.

457137644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139949 (or 139947 counting only the distinct ones).

The product of its digits is 282240, while the sum is 41.

The square root of 457137644 is about 21380.7774414309. Note that the first 3 decimals coincide. The cubic root of 457137644 is about 770.3397859453.

The spelling of 457137644 in words is "four hundred fifty-seven million, one hundred thirty-seven thousand, six hundred forty-four".