900804538 has 16 divisors (see below), whose sum is σ = 1392868224. Its totient is φ = 436694560.

The previous prime is 900804529. The next prime is 900804539. The reversal of 900804538 is 835408009.

It is a super-2 number, since 2×900804538² = 1622897631362786888, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 900804497 and 900804506.

It is not an unprimeable number, because it can be changed into a prime (900804539) 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, 34723 + ... + 54838.

It is an arithmetic number, because the mean of its divisors is an integer number (87054264).

Almost surely, 2^900804538 is an apocalyptic number.

900804538 is a deficient number, since it is larger than the sum of its proper divisors (492063686).

900804538 is a wasteful number, since it uses less digits than its factorization.

900804538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89717.

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 900804538 is about 30013.4059713322. The cubic root of 900804538 is about 965.7769925882.

The spelling of 900804538 in words is "nine hundred million, eight hundred four thousand, five hundred thirty-eight".