49390740 has 72 divisors (see below), whose sum is σ = 171225600. Its totient is φ = 11289024.

The previous prime is 49390739. The next prime is 49390777. The reversal of 49390740 is 4709394.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 49390695 and 49390704.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18340 + ... + 20859.

Almost surely, 2^49390740 is an apocalyptic number.

It is an amenable number.

49390740 is an abundant number, since it is smaller than the sum of its proper divisors (121834860).

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

49390740 is a wasteful number, since it uses less digits than its factorization.

49390740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39221 (or 39216 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 49390740 is about 7027.8545801688. The cubic root of 49390740 is about 366.9006752325.

The spelling of 49390740 in words is "forty-nine million, three hundred ninety thousand, seven hundred forty".