48637440 has 120 divisors (see below), whose sum is σ = 168524928. Its totient is φ = 12963840.

The previous prime is 48637427. The next prime is 48637441. The reversal of 48637440 is 4473684.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 48637395 and 48637404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48637441) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21985 + ... + 24095.

Almost surely, 2^48637440 is an apocalyptic number.

48637440 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 48637440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84262464).

48637440 is an abundant number, since it is smaller than the sum of its proper divisors (119887488).

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

48637440 is a wasteful number, since it uses less digits than its factorization.

48637440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2140 (or 2121 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 36.

The square root of 48637440 is about 6974.0547746630. The cubic root of 48637440 is about 365.0258066447.

The spelling of 48637440 in words is "forty-eight million, six hundred thirty-seven thousand, four hundred forty".