47840286 has 16 divisors (see below), whose sum is σ = 103040784. Its totient is φ = 14720064.

The previous prime is 47840279. The next prime is 47840339. The reversal of 47840286 is 68204874.

It is a Harshad number since it is a multiple of its sum of digits (39).

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, 306591 + ... + 306746.

It is an arithmetic number, because the mean of its divisors is an integer number (6440049).

Almost surely, 2^47840286 is an apocalyptic number.

47840286 is an abundant number, since it is smaller than the sum of its proper divisors (55200498).

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

47840286 is a wasteful number, since it uses less digits than its factorization.

47840286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 613355.

The product of its (nonzero) digits is 86016, while the sum is 39.

The square root of 47840286 is about 6916.6672610442. The cubic root of 47840286 is about 363.0205878935.

The spelling of 47840286 in words is "forty-seven million, eight hundred forty thousand, two hundred eighty-six".