1609009652 has 24 divisors (see below), whose sum is σ = 2841164424. Its totient is φ = 797268992.

The previous prime is 1609009613. The next prime is 1609009657. The reversal of 1609009652 is 2569009061.

It can be written as a sum of positive squares in 4 ways, for example, as 306810256 + 1302199396 = 17516^2 + 36086^2 .

It is a super-2 number, since 2×1609009652² = 5177824120458322208, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1609009657) 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, 368828 + ... + 373164.

It is an arithmetic number, because the mean of its divisors is an integer number (118381851).

Almost surely, 2^1609009652 is an apocalyptic number.

It is an amenable number.

1609009652 is a deficient number, since it is larger than the sum of its proper divisors (1232154772).

1609009652 is a wasteful number, since it uses less digits than its factorization.

1609009652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5155 (or 5153 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 38.

The square root of 1609009652 is about 40112.4625521795. The cubic root of 1609009652 is about 1171.7983525924.

The spelling of 1609009652 in words is "one billion, six hundred nine million, nine thousand, six hundred fifty-two".