49936720 has 20 divisors (see below), whose sum is σ = 116103060. Its totient is φ = 19974656.

The previous prime is 49936697. The next prime is 49936727. The reversal of 49936720 is 2763994.

It can be written as a sum of positive squares in 2 ways, for example, as 5740816 + 44195904 = 2396^2 + 6648^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49936727) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 312025 + ... + 312184.

It is an arithmetic number, because the mean of its divisors is an integer number (5805153).

Almost surely, 2^49936720 is an apocalyptic number.

49936720 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

49936720 is an abundant number, since it is smaller than the sum of its proper divisors (66166340).

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

49936720 is a wasteful number, since it uses less digits than its factorization.

49936720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 624222 (or 624216 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 40.

The square root of 49936720 is about 7066.5918235030. The cubic root of 49936720 is about 368.2476672438.

The spelling of 49936720 in words is "forty-nine million, nine hundred thirty-six thousand, seven hundred twenty".