254278064 has 80 divisors (see below), whose sum is σ = 554964480. Its totient is φ = 112273920.

The previous prime is 254278039. The next prime is 254278081. The reversal of 254278064 is 460872452.

It is a Harshad number since it is a multiple of its sum of digits (38).

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 15 ways as a sum of consecutive naturals, for example, 286229 + ... + 287115.

It is an arithmetic number, because the mean of its divisors is an integer number (6937056).

Almost surely, 2^254278064 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 254278064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (277482240).

254278064 is an abundant number, since it is smaller than the sum of its proper divisors (300686416).

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

254278064 is a wasteful number, since it uses less digits than its factorization.

254278064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 978 (or 972 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 38.

The square root of 254278064 is about 15946.0987078345. The cubic root of 254278064 is about 633.5335694348.

The spelling of 254278064 in words is "two hundred fifty-four million, two hundred seventy-eight thousand, sixty-four".