47389824 has 96 divisors (see below), whose sum is σ = 140874240. Its totient is φ = 15275520.

The previous prime is 47389813. The next prime is 47389841. The reversal of 47389824 is 42898374.

It is a tau number, because it is divible by the number of its divisors (96).

It is a self number, because there is not a number n which added to its sum of digits gives 47389824.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35049 + ... + 36375.

It is an arithmetic number, because the mean of its divisors is an integer number (1467440).

Almost surely, 2^47389824 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 47389824, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70437120).

47389824 is an abundant number, since it is smaller than the sum of its proper divisors (93484416).

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

47389824 is a wasteful number, since it uses less digits than its factorization.

47389824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1378 (or 1363 counting only the distinct ones).

The product of its digits is 387072, while the sum is 45.

The square root of 47389824 is about 6884.0267285942. The cubic root of 47389824 is about 361.8775976797.

The spelling of 47389824 in words is "forty-seven million, three hundred eighty-nine thousand, eight hundred twenty-four".