47490444 has 36 divisors (see below), whose sum is σ = 120464344. Its totient is φ = 15774912.

The previous prime is 47490413. The next prime is 47490449. The reversal of 47490444 is 44409474.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 47490399 and 47490408.

It is not an unprimeable number, because it can be changed into a prime (47490449) 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, 8904 + ... + 13200.

Almost surely, 2^47490444 is an apocalyptic number.

It is an amenable number.

47490444 is an abundant number, since it is smaller than the sum of its proper divisors (72973900).

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

47490444 is a wasteful number, since it uses less digits than its factorization.

47490444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4614 (or 4609 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 36.

The square root of 47490444 is about 6891.3310760694. The cubic root of 47490444 is about 362.1335343668.

The spelling of 47490444 in words is "forty-seven million, four hundred ninety thousand, four hundred forty-four".