47259618 has 96 divisors (see below), whose sum is σ = 119180160. Its totient is φ = 12418560.

The previous prime is 47259613. The next prime is 47259629. The reversal of 47259618 is 81695274.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 47259618.

It is not an unprimeable number, because it can be changed into a prime (47259613) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 195978 + ... + 196218.

It is an arithmetic number, because the mean of its divisors is an integer number (1241460).

Almost surely, 2^47259618 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47259618, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59590080).

47259618 is an abundant number, since it is smaller than the sum of its proper divisors (71920542).

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

47259618 is a wasteful number, since it uses less digits than its factorization.

47259618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312 (or 305 counting only the distinct ones).

The product of its digits is 120960, while the sum is 42.

The square root of 47259618 is about 6874.5631133913. The cubic root of 47259618 is about 361.5458678545.

The spelling of 47259618 in words is "forty-seven million, two hundred fifty-nine thousand, six hundred eighteen".