254988990 has 24 divisors (see below), whose sum is σ = 662971608. Its totient is φ = 67997040.

The previous prime is 254988983. The next prime is 254988991. The reversal of 254988990 is 99889452.

254988990 is a `hidden beast` number, since 2 + 549 + 8 + 8 + 9 + 90 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (254988991) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 1416516 + ... + 1416695.

It is an arithmetic number, because the mean of its divisors is an integer number (27623817).

Almost surely, 2^254988990 is an apocalyptic number.

254988990 is an abundant number, since it is smaller than the sum of its proper divisors (407982618).

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

254988990 is a wasteful number, since it uses less digits than its factorization.

254988990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2833224 (or 2833221 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 54.

The square root of 254988990 is about 15968.3746824779. The cubic root of 254988990 is about 634.1234438717.

The spelling of 254988990 in words is "two hundred fifty-four million, nine hundred eighty-eight thousand, nine hundred ninety".