905484990 has 32 divisors (see below), whose sum is σ = 2174338080. Its totient is φ = 241332224.

The previous prime is 905484949. The next prime is 905485027. The reversal of 905484990 is 99484509.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56782 + ... + 70958.

It is an arithmetic number, because the mean of its divisors is an integer number (67948065).

Almost surely, 2^905484990 is an apocalyptic number.

905484990 is an abundant number, since it is smaller than the sum of its proper divisors (1268853090).

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

905484990 is a wasteful number, since it uses less digits than its factorization.

905484990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16316.

The product of its (nonzero) digits is 466560, while the sum is 48.

The square root of 905484990 is about 30091.2776398743. The cubic root of 905484990 is about 967.4467837912.

The spelling of 905484990 in words is "nine hundred five million, four hundred eighty-four thousand, nine hundred ninety".