47438940 has 24 divisors (see below), whose sum is σ = 132829200. Its totient is φ = 12650368.

The previous prime is 47438929. The next prime is 47438969. The reversal of 47438940 is 4983474.

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, 395265 + ... + 395384.

It is an arithmetic number, because the mean of its divisors is an integer number (5534550).

Almost surely, 2^47438940 is an apocalyptic number.

It is an amenable number.

47438940 is an abundant number, since it is smaller than the sum of its proper divisors (85390260).

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

47438940 is a wasteful number, since it uses less digits than its factorization.

47438940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 790661 (or 790659 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 39.

The square root of 47438940 is about 6887.5931935619. The cubic root of 47438940 is about 362.0025741807.

The spelling of 47438940 in words is "forty-seven million, four hundred thirty-eight thousand, nine hundred forty".