472618239 has 4 divisors (see below), whose sum is σ = 630157656. Its totient is φ = 315078824.

The previous prime is 472618187. The next prime is 472618253. The reversal of 472618239 is 932816274.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 472618239 - 2¹⁷ = 472487167 is a prime.

It is a super-2 number, since 2×472618239² = 446735999670922242, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 472618239.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (472618739) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78769704 + ... + 78769709.

It is an arithmetic number, because the mean of its divisors is an integer number (157539414).

Almost surely, 2^472618239 is an apocalyptic number.

472618239 is a deficient number, since it is larger than the sum of its proper divisors (157539417).

472618239 is a wasteful number, since it uses less digits than its factorization.

472618239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157539416.

The product of its digits is 145152, while the sum is 42.

The square root of 472618239 is about 21739.7847045457. The cubic root of 472618239 is about 778.9390786750.

The spelling of 472618239 in words is "four hundred seventy-two million, six hundred eighteen thousand, two hundred thirty-nine".