472345639 has 8 divisors (see below), whose sum is σ = 478937088. Its totient is φ = 465799320.

The previous prime is 472345637. The next prime is 472345693. The reversal of 472345639 is 936543274.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 472345639 - 2¹ = 472345637 is a prime.

It is a super-2 number, since 2×472345639² = 446220805364636642, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 472345595 and 472345604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (472345637) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10074 + ... + 32344.

It is an arithmetic number, because the mean of its divisors is an integer number (59867136).

Almost surely, 2^472345639 is an apocalyptic number.

472345639 is a deficient number, since it is larger than the sum of its proper divisors (6591449).

472345639 is a wasteful number, since it uses less digits than its factorization.

472345639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22565.

The product of its digits is 544320, while the sum is 43.

The square root of 472345639 is about 21733.5141889203. The cubic root of 472345639 is about 778.7892892586.

The spelling of 472345639 in words is "four hundred seventy-two million, three hundred forty-five thousand, six hundred thirty-nine".