49219990 has 32 divisors (see below), whose sum is σ = 91749024. Its totient is φ = 18996480.

The previous prime is 49219957. The next prime is 49219991. The reversal of 49219990 is 9991294.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49219991) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50205 + ... + 51175.

It is an arithmetic number, because the mean of its divisors is an integer number (2867157).

Almost surely, 2^49219990 is an apocalyptic number.

49219990 is a deficient number, since it is larger than the sum of its proper divisors (42529034).

49219990 is a wasteful number, since it uses less digits than its factorization.

49219990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1152.

The product of its (nonzero) digits is 52488, while the sum is 43.

The square root of 49219990 is about 7015.6959740285. The cubic root of 49219990 is about 366.4773798022.

The spelling of 49219990 in words is "forty-nine million, two hundred nineteen thousand, nine hundred ninety".