47251378 has 16 divisors (see below), whose sum is σ = 73449216. Its totient is φ = 22774320.

The previous prime is 47251349. The next prime is 47251387. The reversal of 47251378 is 87315274.

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, 16200 + ... + 18892.

It is an arithmetic number, because the mean of its divisors is an integer number (4590576).

Almost surely, 2^47251378 is an apocalyptic number.

47251378 is a deficient number, since it is larger than the sum of its proper divisors (26197838).

47251378 is a wasteful number, since it uses less digits than its factorization.

47251378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3009.

The product of its digits is 47040, while the sum is 37.

The square root of 47251378 is about 6873.9637764539. The cubic root of 47251378 is about 361.5248540641.

The spelling of 47251378 in words is "forty-seven million, two hundred fifty-one thousand, three hundred seventy-eight".