254257040 has 40 divisors (see below), whose sum is σ = 610222848. Its totient is φ = 98421120.

The previous prime is 254257037. The next prime is 254257057. The reversal of 254257040 is 40752452.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 254256994 and 254257012.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48782 + ... + 53741.

Almost surely, 2^254257040 is an apocalyptic number.

254257040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

254257040 is an abundant number, since it is smaller than the sum of its proper divisors (355965808).

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

254257040 is a wasteful number, since it uses less digits than its factorization.

254257040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102567 (or 102561 counting only the distinct ones).

The product of its (nonzero) digits is 11200, while the sum is 29.

The square root of 254257040 is about 15945.4394734043. The cubic root of 254257040 is about 633.5161085278.

The spelling of 254257040 in words is "two hundred fifty-four million, two hundred fifty-seven thousand, forty".