47044140 has 96 divisors (see below), whose sum is σ = 154780416. Its totient is φ = 10525440.

The previous prime is 47044139. The next prime is 47044147. The reversal of 47044140 is 4144074.

It is a super-2 number, since 2×47044140² = 4426302216679200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 47044140.

It is not an unprimeable number, because it can be changed into a prime (47044147) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5839 + ... + 11321.

It is an arithmetic number, because the mean of its divisors is an integer number (1612296).

Almost surely, 2^47044140 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 47044140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77390208).

47044140 is an abundant number, since it is smaller than the sum of its proper divisors (107736276).

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

47044140 is a wasteful number, since it uses less digits than its factorization.

47044140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5519 (or 5517 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 24.

The square root of 47044140 is about 6858.8730852816. The cubic root of 47044140 is about 360.9955468383.

The spelling of 47044140 in words is "forty-seven million, forty-four thousand, one hundred forty".