47293940 has 24 divisors (see below), whose sum is σ = 99581832. Its totient is φ = 18867200.

The previous prime is 47293927. The next prime is 47293969. The reversal of 47293940 is 4939274.

It can be written as a sum of positive squares in 4 ways, for example, as 29637136 + 17656804 = 5444^2 + 4202^2 .

It is a junction number, because it is equal to n+sod(n) for n = 47293894 and 47293903.

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, 5072 + ... + 10968.

It is an arithmetic number, because the mean of its divisors is an integer number (4149243).

Almost surely, 2^47293940 is an apocalyptic number.

It is an amenable number.

47293940 is an abundant number, since it is smaller than the sum of its proper divisors (52287892).

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

47293940 is a wasteful number, since it uses less digits than its factorization.

47293940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6307 (or 6305 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 38.

The square root of 47293940 is about 6877.0589644120. The cubic root of 47293940 is about 361.6333701452.

The spelling of 47293940 in words is "forty-seven million, two hundred ninety-three thousand, nine hundred forty".