47301440 has 56 divisors (see below), whose sum is σ = 114802920. Its totient is φ = 18556928.

The previous prime is 47301433. The next prime is 47301479. The reversal of 47301440 is 4410374.

It can be written as a sum of positive squares in 4 ways, for example, as 10916416 + 36385024 = 3304^2 + 6032^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15566 + ... + 18354.

Almost surely, 2^47301440 is an apocalyptic number.

47301440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47301440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57401460).

47301440 is an abundant number, since it is smaller than the sum of its proper divisors (67501480).

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

47301440 is a wasteful number, since it uses less digits than its factorization.

47301440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2859 (or 2849 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 47301440 is about 6877.6042340338. The cubic root of 47301440 is about 361.6524853984.

The spelling of 47301440 in words is "forty-seven million, three hundred one thousand, four hundred forty".