47644434 has 24 divisors (see below), whose sum is σ = 103514112. Its totient is φ = 15837720.

The previous prime is 47644397. The next prime is 47644439. The reversal of 47644434 is 43444674.

47644434 is a `hidden beast` number, since 4 + 7 + 644 + 4 + 3 + 4 = 666.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (47644439) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3439 + ... + 10349.

It is an arithmetic number, because the mean of its divisors is an integer number (4313088).

Almost surely, 2^47644434 is an apocalyptic number.

47644434 is an abundant number, since it is smaller than the sum of its proper divisors (55869678).

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

47644434 is a wasteful number, since it uses less digits than its factorization.

47644434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7302 (or 7299 counting only the distinct ones).

The product of its digits is 129024, while the sum is 36.

The square root of 47644434 is about 6902.4947663870. The cubic root of 47644434 is about 362.5245237472.

The spelling of 47644434 in words is "forty-seven million, six hundred forty-four thousand, four hundred thirty-four".