900645340 has 24 divisors (see below), whose sum is σ = 2161549152. Its totient is φ = 308792640.

The previous prime is 900645331. The next prime is 900645371. The reversal of 900645340 is 43546009.

It is a super-2 number, since 2×900645340² = 1622324056927431200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3216451 + ... + 3216730.

It is an arithmetic number, because the mean of its divisors is an integer number (90064548).

Almost surely, 2^900645340 is an apocalyptic number.

It is an amenable number.

900645340 is an abundant number, since it is smaller than the sum of its proper divisors (1260903812).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

900645340 is a wasteful number, since it uses less digits than its factorization.

900645340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6433197 (or 6433195 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 900645340 is about 30010.7537392849. The cubic root of 900645340 is about 965.7200957375.

The spelling of 900645340 in words is "nine hundred million, six hundred forty-five thousand, three hundred forty".