49870590 has 64 divisors (see below), whose sum is σ = 149230080. Its totient is φ = 10362240.

The previous prime is 49870549. The next prime is 49870591. The reversal of 49870590 is 9507894.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49870591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8485 + ... + 13104.

It is an arithmetic number, because the mean of its divisors is an integer number (2331720).

Almost surely, 2^49870590 is an apocalyptic number.

49870590 is an abundant number, since it is smaller than the sum of its proper divisors (99359490).

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

49870590 is a wasteful number, since it uses less digits than its factorization.

49870590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21617.

The product of its (nonzero) digits is 90720, while the sum is 42.

The square root of 49870590 is about 7061.9112143952. The cubic root of 49870590 is about 368.0850415859.

The spelling of 49870590 in words is "forty-nine million, eight hundred seventy thousand, five hundred ninety".