49939968 has 160 divisors (see below), whose sum is σ = 149177952. Its totient is φ = 14745600.

The previous prime is 49939963. The next prime is 49939979. The reversal of 49939968 is 86993994.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49939963) 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, 818658 + ... + 818718.

Almost surely, 2^49939968 is an apocalyptic number.

49939968 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49939968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74588976).

49939968 is an abundant number, since it is smaller than the sum of its proper divisors (99237984).

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

49939968 is a wasteful number, since it uses less digits than its factorization.

49939968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136 (or 120 counting only the distinct ones).

The product of its digits is 3779136, while the sum is 57.

The square root of 49939968 is about 7066.8216335210. The cubic root of 49939968 is about 368.2556509646.

The spelling of 49939968 in words is "forty-nine million, nine hundred thirty-nine thousand, nine hundred sixty-eight".