47448172 has 12 divisors (see below), whose sum is σ = 86644656. Its totient is φ = 22692560.

The previous prime is 47448157. The next prime is 47448199. The reversal of 47448172 is 27184474.

It is a super-2 number, since 2×47448172² = 4502658052283168, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 257779 + ... + 257962.

It is an arithmetic number, because the mean of its divisors is an integer number (7220388).

Almost surely, 2^47448172 is an apocalyptic number.

It is an amenable number.

47448172 is a deficient number, since it is larger than the sum of its proper divisors (39196484).

47448172 is a wasteful number, since it uses less digits than its factorization.

47448172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 515768 (or 515766 counting only the distinct ones).

The product of its digits is 50176, while the sum is 37.

The square root of 47448172 is about 6888.2633515277. The cubic root of 47448172 is about 362.0260555302.

The spelling of 47448172 in words is "forty-seven million, four hundred forty-eight thousand, one hundred seventy-two".