609638344 has 32 divisors (see below), whose sum is σ = 1341679680. Its totient is φ = 254211264.

The previous prime is 609638311. The next prime is 609638347. The reversal of 609638344 is 443836906.

It is a self number, because there is not a number n which added to its sum of digits gives 609638344.

It is not an unprimeable number, because it can be changed into a prime (609638347) 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, 145042 + ... + 149185.

It is an arithmetic number, because the mean of its divisors is an integer number (41927490).

Almost surely, 2^609638344 is an apocalyptic number.

It is an amenable number.

609638344 is an abundant number, since it is smaller than the sum of its proper divisors (732041336).

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

609638344 is a wasteful number, since it uses less digits than its factorization.

609638344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294277 (or 294273 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 43.

The square root of 609638344 is about 24690.8554732314. The cubic root of 609638344 is about 847.9249703701.

The spelling of 609638344 in words is "six hundred nine million, six hundred thirty-eight thousand, three hundred forty-four".