47445480 has 128 divisors (see below), whose sum is σ = 159667200. Its totient is φ = 12531456.

The previous prime is 47445443. The next prime is 47445493. The reversal of 47445480 is 8454474.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 212649 + ... + 212871.

It is an arithmetic number, because the mean of its divisors is an integer number (1247400).

Almost surely, 2^47445480 is an apocalyptic number.

47445480 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 47445480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79833600).

47445480 is an abundant number, since it is smaller than the sum of its proper divisors (112221720).

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

47445480 is a wasteful number, since it uses less digits than its factorization.

47445480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 440 (or 430 counting only the distinct ones).

The product of its (nonzero) digits is 71680, while the sum is 36.

The square root of 47445480 is about 6888.0679439158. The cubic root of 47445480 is about 362.0192088135.

It can be divided in two parts, 474 and 45480, that added together give a palindrome (45954).

The spelling of 47445480 in words is "forty-seven million, four hundred forty-five thousand, four hundred eighty".