49012720 has 40 divisors (see below), whose sum is σ = 115572960. Its totient is φ = 19326720.

The previous prime is 49012703. The next prime is 49012759. The reversal of 49012720 is 2721094.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1366 + ... + 9994.

It is an arithmetic number, because the mean of its divisors is an integer number (2889324).

Almost surely, 2^49012720 is an apocalyptic number.

49012720 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 49012720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57786480).

49012720 is an abundant number, since it is smaller than the sum of its proper divisors (66560240).

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

49012720 is a wasteful number, since it uses less digits than its factorization.

49012720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8713 (or 8707 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 49012720 is about 7000.9085124718. The cubic root of 49012720 is about 365.9622324591.

The spelling of 49012720 in words is "forty-nine million, twelve thousand, seven hundred twenty".