254561240 has 64 divisors (see below), whose sum is σ = 629164800. Its totient is φ = 92264832.

The previous prime is 254561227. The next prime is 254561257. The reversal of 254561240 is 42165452.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10199 + ... + 24761.

It is an arithmetic number, because the mean of its divisors is an integer number (9830700).

Almost surely, 2^254561240 is an apocalyptic number.

254561240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 254561240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (314582400).

254561240 is an abundant number, since it is smaller than the sum of its proper divisors (374603560).

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

254561240 is a wasteful number, since it uses less digits than its factorization.

254561240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14616 (or 14612 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 254561240 is about 15954.9753995423. The cubic root of 254561240 is about 633.7686597709.

The spelling of 254561240 in words is "two hundred fifty-four million, five hundred sixty-one thousand, two hundred forty".