48917820 has 48 divisors (see below), whose sum is σ = 156538368. Its totient is φ = 11181120.

The previous prime is 48917777. The next prime is 48917821. The reversal of 48917820 is 2871984.

It is a super-2 number, since 2×48917820² = 4785906227104800, which contains 22 as substring.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48917821) 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, 57816 + ... + 58655.

It is an arithmetic number, because the mean of its divisors is an integer number (3261216).

Almost surely, 2^48917820 is an apocalyptic number.

It is an amenable number.

48917820 is an abundant number, since it is smaller than the sum of its proper divisors (107620548).

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

48917820 is a wasteful number, since it uses less digits than its factorization.

48917820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116490 (or 116488 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 39.

The square root of 48917820 is about 6994.1275367268. The cubic root of 48917820 is about 365.7258839153.

The spelling of 48917820 in words is "forty-eight million, nine hundred seventeen thousand, eight hundred twenty".