49439644 has 6 divisors (see below), whose sum is σ = 86519384. Its totient is φ = 24719820.

The previous prime is 49439623. The next prime is 49439651. The reversal of 49439644 is 44693494.

It is a self number, because there is not a number n which added to its sum of digits gives 49439644.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6179952 + ... + 6179959.

Almost surely, 2^49439644 is an apocalyptic number.

It is an amenable number.

49439644 is a deficient number, since it is larger than the sum of its proper divisors (37079740).

49439644 is a wasteful number, since it uses less digits than its factorization.

49439644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12359915 (or 12359913 counting only the distinct ones).

The product of its digits is 373248, while the sum is 43.

The square root of 49439644 is about 7031.3330172877. Note that the first 3 decimals coincide. The cubic root of 49439644 is about 367.0217302578.

The spelling of 49439644 in words is "forty-nine million, four hundred thirty-nine thousand, six hundred forty-four".