254405420 has 12 divisors (see below), whose sum is σ = 534251424. Its totient is φ = 101762160.

The previous prime is 254405419. The next prime is 254405449. The reversal of 254405420 is 24504452.

It is a self number, because there is not a number n which added to its sum of digits gives 254405420.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6360116 + ... + 6360155.

It is an arithmetic number, because the mean of its divisors is an integer number (44520952).

Almost surely, 2^254405420 is an apocalyptic number.

254405420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

254405420 is an abundant number, since it is smaller than the sum of its proper divisors (279846004).

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

254405420 is a wasteful number, since it uses less digits than its factorization.

254405420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12720280 (or 12720278 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 26.

The square root of 254405420 is about 15950.0915357875. The cubic root of 254405420 is about 633.6393209015.

Adding to 254405420 its reverse (24504452), we get a palindrome (278909872).

The spelling of 254405420 in words is "two hundred fifty-four million, four hundred five thousand, four hundred twenty".