49949720 has 48 divisors (see below), whose sum is σ = 115486560. Its totient is φ = 19434816.

The previous prime is 49949699. The next prime is 49949777. The reversal of 49949720 is 2794994.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 306359 + ... + 306521.

It is an arithmetic number, because the mean of its divisors is an integer number (2405970).

Almost surely, 2^49949720 is an apocalyptic number.

49949720 is a gapful number since it is divisible by the number (40) 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 49949720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57743280).

49949720 is an abundant number, since it is smaller than the sum of its proper divisors (65536840).

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

49949720 is a wasteful number, since it uses less digits than its factorization.

49949720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 384 (or 217 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 44.

The square root of 49949720 is about 7067.5115847093. The cubic root of 49949720 is about 368.2796197116.

The spelling of 49949720 in words is "forty-nine million, nine hundred forty-nine thousand, seven hundred twenty".