47390144 has 28 divisors (see below), whose sum is σ = 94582488. Its totient is φ = 23558400.

The previous prime is 47390141. The next prime is 47390153. The reversal of 47390144 is 44109374.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a self number, because there is not a number n which added to its sum of digits gives 47390144.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47390141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9539 + ... + 13629.

It is an arithmetic number, because the mean of its divisors is an integer number (3377946).

Almost surely, 2^47390144 is an apocalyptic number.

It is an amenable number.

47390144 is a deficient number, since it is larger than the sum of its proper divisors (47192344).

47390144 is a wasteful number, since it uses less digits than its factorization.

47390144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4284 (or 4274 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 47390144 is about 6884.0499707658. The cubic root of 47390144 is about 361.8784122046.

The spelling of 47390144 in words is "forty-seven million, three hundred ninety thousand, one hundred forty-four".