49390928 has 10 divisors (see below), whose sum is σ = 95694954. Its totient is φ = 24695456.

The previous prime is 49390927. The next prime is 49390931. The reversal of 49390928 is 82909394.

It can be written as a sum of positive squares in only one way, i.e., 49168144 + 222784 = 7012^2 + 472^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49390927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1543451 + ... + 1543482.

Almost surely, 2^49390928 is an apocalyptic number.

It is an amenable number.

49390928 is a deficient number, since it is larger than the sum of its proper divisors (46304026).

49390928 is a wasteful number, since it uses less digits than its factorization.

49390928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3086941 (or 3086935 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 44.

The square root of 49390928 is about 7027.8679555040. The cubic root of 49390928 is about 366.9011407532.

The spelling of 49390928 in words is "forty-nine million, three hundred ninety thousand, nine hundred twenty-eight".