47100840 has 64 divisors (see below), whose sum is σ = 143035200. Its totient is φ = 12406272.

The previous prime is 47100839. The next prime is 47100853. The reversal of 47100840 is 4800174.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 47100840.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7596 + ... + 12324.

It is an arithmetic number, because the mean of its divisors is an integer number (2234925).

Almost surely, 2^47100840 is an apocalyptic number.

47100840 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 47100840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71517600).

47100840 is an abundant number, since it is smaller than the sum of its proper divisors (95934360).

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

47100840 is a wasteful number, since it uses less digits than its factorization.

47100840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4826 (or 4822 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 24.

The square root of 47100840 is about 6863.0051726631. The cubic root of 47100840 is about 361.1405187009.

The spelling of 47100840 in words is "forty-seven million, one hundred thousand, eight hundred forty".