609509044 has 6 divisors (see below), whose sum is σ = 1066640834. Its totient is φ = 304754520.

The previous prime is 609509009. The next prime is 609509051. The reversal of 609509044 is 440905906.

It can be written as a sum of positive squares in only one way, i.e., 474716944 + 134792100 = 21788^2 + 11610^2 .

It is a junction number, because it is equal to n+sod(n) for n = 609508994 and 609509012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76188627 + ... + 76188634.

Almost surely, 2^609509044 is an apocalyptic number.

It is an amenable number.

609509044 is a deficient number, since it is larger than the sum of its proper divisors (457131790).

609509044 is a wasteful number, since it uses less digits than its factorization.

609509044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152377265 (or 152377263 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 609509044 is about 24688.2369560890. The cubic root of 609509044 is about 847.8650198264.

The spelling of 609509044 in words is "six hundred nine million, five hundred nine thousand, forty-four".