49656720 has 80 divisors (see below), whose sum is σ = 155382912. Its totient is φ = 13117440.

The previous prime is 49656703. The next prime is 49656721. The reversal of 49656720 is 2765694.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-3 number, since 3×49656720³ (a number of 24 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (49656721) 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, 26205 + ... + 28035.

Almost surely, 2^49656720 is an apocalyptic number.

49656720 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 49656720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77691456).

49656720 is an abundant number, since it is smaller than the sum of its proper divisors (105726192).

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

49656720 is a wasteful number, since it uses less digits than its factorization.

49656720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1960 (or 1954 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 39.

The square root of 49656720 is about 7046.7524435019. The cubic root of 49656720 is about 367.5581101131.

The spelling of 49656720 in words is "forty-nine million, six hundred fifty-six thousand, seven hundred twenty".