47548840 has 16 divisors (see below), whose sum is σ = 106984980. Its totient is φ = 19019520.

The previous prime is 47548801. The next prime is 47548859. The reversal of 47548840 is 4884574.

It can be written as a sum of positive squares in 2 ways, for example, as 42432196 + 5116644 = 6514^2 + 2262^2 .

It is a Harshad number since it is a multiple of its sum of digits (40), and also a Moran number because the ratio is a prime number: 1188721 = 47548840 / (4 + 7 + 5 + 4 + 8 + 8 + 4 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 47548793 and 47548802.

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, 594321 + ... + 594400.

Almost surely, 2^47548840 is an apocalyptic number.

47548840 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

47548840 is an abundant number, since it is smaller than the sum of its proper divisors (59436140).

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

47548840 is a wasteful number, since it uses less digits than its factorization.

47548840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1188732 (or 1188728 counting only the distinct ones).

The product of its (nonzero) digits is 143360, while the sum is 40.

The square root of 47548840 is about 6895.5666917230. The cubic root of 47548840 is about 362.2819044825.

The spelling of 47548840 in words is "forty-seven million, five hundred forty-eight thousand, eight hundred forty".