49139910 has 48 divisors (see below), whose sum is σ = 130493376. Its totient is φ = 12824064.

The previous prime is 49139903. The next prime is 49139939. The reversal of 49139910 is 1993194.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1579 + ... + 10038.

It is an arithmetic number, because the mean of its divisors is an integer number (2718612).

Almost surely, 2^49139910 is an apocalyptic number.

49139910 is an abundant number, since it is smaller than the sum of its proper divisors (81353466).

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

49139910 is a wasteful number, since it uses less digits than its factorization.

49139910 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11677 (or 11674 counting only the distinct ones).

The product of its (nonzero) digits is 8748, while the sum is 36.

The square root of 49139910 is about 7009.9864479184. The cubic root of 49139910 is about 366.2785213105.

It can be divided in two parts, 491 and 39910, that added together give a square (40401 = 201²).

The spelling of 49139910 in words is "forty-nine million, one hundred thirty-nine thousand, nine hundred ten".