254642540 has 12 divisors (see below), whose sum is σ = 534749376. Its totient is φ = 101857008.

The previous prime is 254642527. The next prime is 254642561. The reversal of 254642540 is 45246452.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 254642497 and 254642506.

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, 6366044 + ... + 6366083.

It is an arithmetic number, because the mean of its divisors is an integer number (44562448).

Almost surely, 2^254642540 is an apocalyptic number.

254642540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

254642540 is an abundant number, since it is smaller than the sum of its proper divisors (280106836).

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

254642540 is a wasteful number, since it uses less digits than its factorization.

254642540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12732136 (or 12732134 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 32.

The square root of 254642540 is about 15957.5229907401. The cubic root of 254642540 is about 633.8361221331.

Adding to 254642540 its reverse (45246452), we get a palindrome (299888992).

The spelling of 254642540 in words is "two hundred fifty-four million, six hundred forty-two thousand, five hundred forty".