254635540 has 24 divisors (see below), whose sum is σ = 536290272. Its totient is φ = 101557920.

The previous prime is 254635531. The next prime is 254635547. The reversal of 254635540 is 45536452.

It is a junction number, because it is equal to n+sod(n) for n = 254635496 and 254635505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (254635547) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11406 + ... + 25285.

It is an arithmetic number, because the mean of its divisors is an integer number (22345428).

Almost surely, 2^254635540 is an apocalyptic number.

254635540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

254635540 is an abundant number, since it is smaller than the sum of its proper divisors (281654732).

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

254635540 is a wasteful number, since it uses less digits than its factorization.

254635540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37047 (or 37045 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 34.

The square root of 254635540 is about 15957.3036569466. The cubic root of 254635540 is about 633.8303141306.

The spelling of 254635540 in words is "two hundred fifty-four million, six hundred thirty-five thousand, five hundred forty".