47290464 has 144 divisors (see below), whose sum is σ = 153552672. Its totient is φ = 13676544.

The previous prime is 47290459. The next prime is 47290489. The reversal of 47290464 is 46409274.

It is a tau number, because it is divible by the number of its divisors (144).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 63277 + ... + 64019.

It is an arithmetic number, because the mean of its divisors is an integer number (1066338).

Almost surely, 2^47290464 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 47290464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76776336).

47290464 is an abundant number, since it is smaller than the sum of its proper divisors (106262208).

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

47290464 is a wasteful number, since it uses less digits than its factorization.

47290464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 789 (or 778 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The square root of 47290464 is about 6876.8062354555. The cubic root of 47290464 is about 361.6245101772.

The spelling of 47290464 in words is "forty-seven million, two hundred ninety thousand, four hundred sixty-four".