48645840 has 80 divisors (see below), whose sum is σ = 159686208. Its totient is φ = 12208128.

The previous prime is 48645829. The next prime is 48645859. The reversal of 48645840 is 4854684.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1882 + ... + 10041.

Almost surely, 2^48645840 is an apocalyptic number.

48645840 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 48645840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79843104).

48645840 is an abundant number, since it is smaller than the sum of its proper divisors (111040368).

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

48645840 is a wasteful number, since it uses less digits than its factorization.

48645840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11956 (or 11950 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 39.

The square root of 48645840 is about 6974.6569808127. The cubic root of 48645840 is about 365.0468195398.

The spelling of 48645840 in words is "forty-eight million, six hundred forty-five thousand, eight hundred forty".