49408839 has 16 divisors (see below), whose sum is σ = 73367040. Its totient is φ = 32863320.

The previous prime is 49408831. The next prime is 49408859. The reversal of 49408839 is 93880494.

It is a happy number.

It is not a de Polignac number, because 49408839 - 2³ = 49408831 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 49408794 and 49408803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49408831) 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, 11394 + ... + 15120.

It is an arithmetic number, because the mean of its divisors is an integer number (4585440).

Almost surely, 2^49408839 is an apocalyptic number.

49408839 is a deficient number, since it is larger than the sum of its proper divisors (23958201).

49408839 is a wasteful number, since it uses less digits than its factorization.

49408839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4227 (or 4221 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The square root of 49408839 is about 7029.1421240433. The cubic root of 49408839 is about 366.9454860908.

The spelling of 49408839 in words is "forty-nine million, four hundred eight thousand, eight hundred thirty-nine".