47857392 has 140 divisors (see below), whose sum is σ = 152066904. Its totient is φ = 14463360.

The previous prime is 47857351. The next prime is 47857393. The reversal of 47857392 is 29375874.

47857392 is a `hidden beast` number, since 4 + 78 + 573 + 9 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47857393) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 128118 + ... + 128490.

Almost surely, 2^47857392 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47857392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76033452).

47857392 is an abundant number, since it is smaller than the sum of its proper divisors (104209512).

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

47857392 is a wasteful number, since it uses less digits than its factorization.

47857392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410 (or 389 counting only the distinct ones).

The product of its digits is 423360, while the sum is 45.

The square root of 47857392 is about 6917.9037287317. The cubic root of 47857392 is about 363.0638505263.

The spelling of 47857392 in words is "forty-seven million, eight hundred fifty-seven thousand, three hundred ninety-two".