900090465 has 16 divisors (see below), whose sum is σ = 1441796928. Its totient is φ = 479497536.

The previous prime is 900090461. The next prime is 900090473. The reversal of 900090465 is 564090009.

It is a happy number.

It is not a de Polignac number, because 900090465 - 2² = 900090461 is a prime.

It is not an unprimeable number, because it can be changed into a prime (900090461) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20734 + ... + 47223.

It is an arithmetic number, because the mean of its divisors is an integer number (90112308).

Almost surely, 2^900090465 is an apocalyptic number.

It is an amenable number.

900090465 is a deficient number, since it is larger than the sum of its proper divisors (541706463).

900090465 is a wasteful number, since it uses less digits than its factorization.

900090465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68848.

The product of its (nonzero) digits is 9720, while the sum is 33.

The square root of 900090465 is about 30001.5077121134. The cubic root of 900090465 is about 965.5217327800.

The spelling of 900090465 in words is "nine hundred million, ninety thousand, four hundred sixty-five".