47273640 has 32 divisors (see below), whose sum is σ = 141821280. Its totient is φ = 12606272.

The previous prime is 47273623. The next prime is 47273657. The reversal of 47273640 is 4637274.

It is an interprime number because it is at equal distance from previous prime (47273623) and next prime (47273657).

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, 196854 + ... + 197093.

It is an arithmetic number, because the mean of its divisors is an integer number (4431915).

Almost surely, 2^47273640 is an apocalyptic number.

47273640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

47273640 is an abundant number, since it is smaller than the sum of its proper divisors (94547640).

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

47273640 is a wasteful number, since it uses less digits than its factorization.

47273640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393961 (or 393957 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 33.

The square root of 47273640 is about 6875.5828843815. The cubic root of 47273640 is about 361.5816213869.

The spelling of 47273640 in words is "forty-seven million, two hundred seventy-three thousand, six hundred forty".