47512920 has 256 divisors, whose sum is σ = 185472000. Its totient is φ = 9455616.

The previous prime is 47512903. The next prime is 47512931. The reversal of 47512920 is 2921574.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 207366 + ... + 207594.

It is an arithmetic number, because the mean of its divisors is an integer number (724500).

Almost surely, 2^47512920 is an apocalyptic number.

47512920 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 47512920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92736000).

47512920 is an abundant number, since it is smaller than the sum of its proper divisors (137959080).

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

47512920 is a wasteful number, since it uses less digits than its factorization.

47512920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282 (or 278 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 47512920 is about 6892.9616276315. The cubic root of 47512920 is about 362.1906548380.

The spelling of 47512920 in words is "forty-seven million, five hundred twelve thousand, nine hundred twenty".