49638464 has 14 divisors (see below), whose sum is σ = 98501454. Its totient is φ = 24819200.

The previous prime is 49638403. The next prime is 49638493. The reversal of 49638464 is 46483694.

It can be written as a sum of positive squares in only one way, i.e., 36096064 + 13542400 = 6008^2 + 3680^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 387737 + ... + 387864.

Almost surely, 2^49638464 is an apocalyptic number.

It is an amenable number.

49638464 is a deficient number, since it is larger than the sum of its proper divisors (48862990).

49638464 is an equidigital number, since it uses as much as digits as its factorization.

49638464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 775613 (or 775603 counting only the distinct ones).

The product of its digits is 497664, while the sum is 44.

The square root of 49638464 is about 7045.4569759527. The cubic root of 49638464 is about 367.5130610688.

The spelling of 49638464 in words is "forty-nine million, six hundred thirty-eight thousand, four hundred sixty-four".