48640840 has 16 divisors (see below), whose sum is σ = 109441980. Its totient is φ = 19456320.

The previous prime is 48640831. The next prime is 48640877. The reversal of 48640840 is 4804684.

It can be written as a sum of positive squares in 2 ways, for example, as 48469444 + 171396 = 6962^2 + 414^2 .

It is a junction number, because it is equal to n+sod(n) for n = 48640796 and 48640805.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 607971 + ... + 608050.

Almost surely, 2^48640840 is an apocalyptic number.

48640840 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

48640840 is an abundant number, since it is smaller than the sum of its proper divisors (60801140).

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

48640840 is a wasteful number, since it uses less digits than its factorization.

48640840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1216032 (or 1216028 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 34.

The square root of 48640840 is about 6974.2985310352. The cubic root of 48640840 is about 365.0343121556.

The spelling of 48640840 in words is "forty-eight million, six hundred forty thousand, eight hundred forty".