47928240 has 80 divisors (see below), whose sum is σ = 165093600. Its totient is φ = 12780288.

The previous prime is 47928239. The next prime is 47928259. The reversal of 47928240 is 4282974.

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

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 = 47928195 and 47928204.

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, 8935 + ... + 13254.

It is an arithmetic number, because the mean of its divisors is an integer number (2063670).

Almost surely, 2^47928240 is an apocalyptic number.

47928240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

47928240 is an abundant number, since it is smaller than the sum of its proper divisors (117165360).

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

47928240 is a wasteful number, since it uses less digits than its factorization.

47928240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22211 (or 22199 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 47928240 is about 6923.0224613242. The cubic root of 47928240 is about 363.2429218876.

The spelling of 47928240 in words is "forty-seven million, nine hundred twenty-eight thousand, two hundred forty".