49638764 has 36 divisors (see below), whose sum is σ = 101553480. Its totient is φ = 21168000.

The previous prime is 49638763. The next prime is 49638769. The reversal of 49638764 is 46783694.

It is not an unprimeable number, because it can be changed into a prime (49638763) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 48692 + ... + 49700.

It is an arithmetic number, because the mean of its divisors is an integer number (2820930).

Almost surely, 2^49638764 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49638764, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50776740).

49638764 is an abundant number, since it is smaller than the sum of its proper divisors (51914716).

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

49638764 is a wasteful number, since it uses less digits than its factorization.

49638764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1278 (or 1269 counting only the distinct ones).

The product of its digits is 870912, while the sum is 47.

The square root of 49638764 is about 7045.4782662357. The cubic root of 49638764 is about 367.5138014469.

The spelling of 49638764 in words is "forty-nine million, six hundred thirty-eight thousand, seven hundred sixty-four".