254023440 has 80 divisors (see below), whose sum is σ = 859070016. Its totient is φ = 61580800.

The previous prime is 254023433. The next prime is 254023481. The reversal of 254023440 is 44320452.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 254023440.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45471 + ... + 50750.

Almost surely, 2^254023440 is an apocalyptic number.

254023440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

254023440 is an abundant number, since it is smaller than the sum of its proper divisors (605046576).

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

254023440 is a wasteful number, since it uses less digits than its factorization.

254023440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96248 (or 96242 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 24.

The square root of 254023440 is about 15938.1128117478. The cubic root of 254023440 is about 633.3220336550.

Adding to 254023440 its reverse (44320452), we get a palindrome (298343892).

The spelling of 254023440 in words is "two hundred fifty-four million, twenty-three thousand, four hundred forty".