254423140 has 12 divisors (see below), whose sum is σ = 534288636. Its totient is φ = 101769248.

The previous prime is 254423123. The next prime is 254423149. The reversal of 254423140 is 41324452.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 183223296 + 71199844 = 13536^2 + 8438^2 .

It is a super-2 number, since 2×254423140² = 129462268334919200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (254423149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6360559 + ... + 6360598.

It is an arithmetic number, because the mean of its divisors is an integer number (44524053).

Almost surely, 2^254423140 is an apocalyptic number.

254423140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

254423140 is an abundant number, since it is smaller than the sum of its proper divisors (279865496).

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

254423140 is a wasteful number, since it uses less digits than its factorization.

254423140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12721166 (or 12721164 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 254423140 is about 15950.6470088207. The cubic root of 254423140 is about 633.6540321029.

Adding to 254423140 its reverse (41324452), we get a palindrome (295747592).

It can be divided in two parts, 25442 and 3140, that added together give a palindrome (28582).

The spelling of 254423140 in words is "two hundred fifty-four million, four hundred twenty-three thousand, one hundred forty".