47148540 has 24 divisors (see below), whose sum is σ = 132016080. Its totient is φ = 12572928.

The previous prime is 47148539. The next prime is 47148571. The reversal of 47148540 is 4584174.

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, 392845 + ... + 392964.

It is an arithmetic number, because the mean of its divisors is an integer number (5500670).

Almost surely, 2^47148540 is an apocalyptic number.

It is an amenable number.

47148540 is an abundant number, since it is smaller than the sum of its proper divisors (84867540).

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

47148540 is a wasteful number, since it uses less digits than its factorization.

47148540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 785821 (or 785819 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 33.

The square root of 47148540 is about 6866.4794472859. The cubic root of 47148540 is about 361.2623890740.

The spelling of 47148540 in words is "forty-seven million, one hundred forty-eight thousand, five hundred forty".