609422144 has 28 divisors (see below), whose sum is σ = 1237451424. Its totient is φ = 297623424.

The previous prime is 609422141. The next prime is 609422159. The reversal of 609422144 is 441224906.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a self number, because there is not a number n which added to its sum of digits gives 609422144.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (609422141) 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, 107972 + ... + 113475.

Almost surely, 2^609422144 is an apocalyptic number.

609422144 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

609422144 is an abundant number, since it is smaller than the sum of its proper divisors (628029280).

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

609422144 is a wasteful number, since it uses less digits than its factorization.

609422144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221502 (or 221492 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 609422144 is about 24686.4769458908. The cubic root of 609422144 is about 847.8247234748.

The spelling of 609422144 in words is "six hundred nine million, four hundred twenty-two thousand, one hundred forty-four".