47623140 has 144 divisors (see below), whose sum is σ = 154103040. Its totient is φ = 12337920.

The previous prime is 47623123. The next prime is 47623151. The reversal of 47623140 is 4132674.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 199141 + ... + 199379.

It is an arithmetic number, because the mean of its divisors is an integer number (1070160).

Almost surely, 2^47623140 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47623140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77051520).

47623140 is an abundant number, since it is smaller than the sum of its proper divisors (106479900).

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

47623140 is a wasteful number, since it uses less digits than its factorization.

47623140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304 (or 290 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 47623140 is about 6900.9521082239. The cubic root of 47623140 is about 362.4705073112.

The spelling of 47623140 in words is "forty-seven million, six hundred twenty-three thousand, one hundred forty".