254004140 has 48 divisors (see below), whose sum is σ = 608241312. Its totient is φ = 88267776.

The previous prime is 254004137. The next prime is 254004167. The reversal of 254004140 is 41400452.

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 24314 + ... + 33153.

It is an arithmetic number, because the mean of its divisors is an integer number (12671694).

Almost surely, 2^254004140 is an apocalyptic number.

254004140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

254004140 is an abundant number, since it is smaller than the sum of its proper divisors (354237172).

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

254004140 is a wasteful number, since it uses less digits than its factorization.

254004140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57506 (or 57504 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 254004140 is about 15937.5073333316. The cubic root of 254004140 is about 633.3059938952.

Adding to 254004140 its reverse (41400452), we get a palindrome (295404592).

The spelling of 254004140 in words is "two hundred fifty-four million, four thousand, one hundred forty".