3609502090 has 16 divisors (see below), whose sum is σ = 6498150120. Its totient is φ = 1443568320.

The previous prime is 3609502069. The next prime is 3609502093. The reversal of 3609502090 is 902059063.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1489728409 + 2119773681 = 38597^2 + 46041^2 .

It is not an unprimeable number, because it can be changed into a prime (3609502093) 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, 45160 + ... + 96220.

Almost surely, 2^3609502090 is an apocalyptic number.

3609502090 is a deficient number, since it is larger than the sum of its proper divisors (2888648030).

3609502090 is a wasteful number, since it uses less digits than its factorization.

3609502090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58137.

The product of its (nonzero) digits is 14580, while the sum is 34.

The square root of 3609502090 is about 60079.1319011851. The cubic root of 3609502090 is about 1533.9661136952.

The spelling of 3609502090 in words is "three billion, six hundred nine million, five hundred two thousand, ninety".