610009090 has 16 divisors (see below), whose sum is σ = 1098784440. Its totient is φ = 243832960.

The previous prime is 610009039. The next prime is 610009093. The reversal of 610009090 is 90900016.

It can be written as a sum of positive squares in 4 ways, for example, as 246458601 + 363550489 = 15699^2 + 19067^2 .

It is a super-2 number, since 2×610009090² = 744222179765256200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (610009093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5785 + ... + 35404.

Almost surely, 2^610009090 is an apocalyptic number.

610009090 is a deficient number, since it is larger than the sum of its proper divisors (488775350).

610009090 is a wasteful number, since it uses less digits than its factorization.

610009090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42677.

The product of its (nonzero) digits is 486, while the sum is 25.

The square root of 610009090 is about 24698.3620914424. The cubic root of 610009090 is about 848.0968214846.

The spelling of 610009090 in words is "six hundred ten million, nine thousand, ninety".