254163490 has 48 divisors (see below), whose sum is σ = 535091832. Its totient is φ = 86666496.

The previous prime is 254163473. The next prime is 254163499. The reversal of 254163490 is 94361452.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 227979801 + 26183689 = 15099^2 + 5117^2 .

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (254163499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 95214 + ... + 97846.

Almost surely, 2^254163490 is an apocalyptic number.

254163490 is an abundant number, since it is smaller than the sum of its proper divisors (280928342).

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

254163490 is a wasteful number, since it uses less digits than its factorization.

254163490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2851 (or 2844 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 254163490 is about 15942.5057628969. The cubic root of 254163490 is about 633.4384014667.

The spelling of 254163490 in words is "two hundred fifty-four million, one hundred sixty-three thousand, four hundred ninety".