47621920 has 48 divisors (see below), whose sum is σ = 112952448. Its totient is φ = 18973440.

The previous prime is 47621897. The next prime is 47621939. The reversal of 47621920 is 2912674.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58315 + ... + 59125.

It is an arithmetic number, because the mean of its divisors is an integer number (2353176).

Almost surely, 2^47621920 is an apocalyptic number.

47621920 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 47621920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56476224).

47621920 is an abundant number, since it is smaller than the sum of its proper divisors (65330528).

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

47621920 is a wasteful number, since it uses less digits than its factorization.

47621920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1193 (or 1185 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 47621920 is about 6900.8637140578. The cubic root of 47621920 is about 362.4674120527.

The spelling of 47621920 in words is "forty-seven million, six hundred twenty-one thousand, nine hundred twenty".