254431340 has 48 divisors (see below), whose sum is σ = 544864320. Its totient is φ = 99778560.

The previous prime is 254431339. The next prime is 254431343. The reversal of 254431340 is 43134452.

It is not an unprimeable number, because it can be changed into a prime (254431343) 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 15 ways as a sum of consecutive naturals, for example, 330476 + ... + 331244.

It is an arithmetic number, because the mean of its divisors is an integer number (11351340).

Almost surely, 2^254431340 is an apocalyptic number.

254431340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

254431340 is an abundant number, since it is smaller than the sum of its proper divisors (290432980).

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

254431340 is a wasteful number, since it uses less digits than its factorization.

254431340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1082 (or 1080 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 254431340 is about 15950.9040496142. The cubic root of 254431340 is about 633.6608395382.

Adding to 254431340 its reverse (43134452), we get a palindrome (297565792).

The spelling of 254431340 in words is "two hundred fifty-four million, four hundred thirty-one thousand, three hundred forty".