254540420 has 12 divisors (see below), whose sum is σ = 534534924. Its totient is φ = 101816160.

The previous prime is 254540387. The next prime is 254540431. The reversal of 254540420 is 24045452.

It can be written as a sum of positive squares in 2 ways, for example, as 175721536 + 78818884 = 13256^2 + 8878^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 254540420.

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, 6363491 + ... + 6363530.

It is an arithmetic number, because the mean of its divisors is an integer number (44544577).

Almost surely, 2^254540420 is an apocalyptic number.

254540420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

254540420 is an abundant number, since it is smaller than the sum of its proper divisors (279994504).

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

254540420 is a wasteful number, since it uses less digits than its factorization.

254540420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12727030 (or 12727028 counting only the distinct ones).

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

The square root of 254540420 is about 15954.3229251510. The cubic root of 254540420 is about 633.7513811215.

Adding to 254540420 its reverse (24045452), we get a palindrome (278585872).

The spelling of 254540420 in words is "two hundred fifty-four million, five hundred forty thousand, four hundred twenty".