49191964 has 12 divisors (see below), whose sum is σ = 88185888. Its totient is φ = 23996000.

The previous prime is 49191953. The next prime is 49191973. The reversal of 49191964 is 46919194.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 49191964.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 149812 + ... + 150139.

It is an arithmetic number, because the mean of its divisors is an integer number (7348824).

Almost surely, 2^49191964 is an apocalyptic number.

It is an amenable number.

49191964 is a deficient number, since it is larger than the sum of its proper divisors (38993924).

49191964 is a wasteful number, since it uses less digits than its factorization.

49191964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299996 (or 299994 counting only the distinct ones).

The product of its digits is 69984, while the sum is 43.

The square root of 49191964 is about 7013.6983111622. The cubic root of 49191964 is about 366.4078088475.

The spelling of 49191964 in words is "forty-nine million, one hundred ninety-one thousand, nine hundred sixty-four".