254400431 has 4 divisors (see below), whose sum is σ = 256403712. Its totient is φ = 252397152.

The previous prime is 254400413. The next prime is 254400467. The reversal of 254400431 is 134004452.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-254400431 is a prime.

It is a super-2 number, since 2×254400431² = 129439158585971522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 254400397 and 254400406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (254400931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1001450 + ... + 1001703.

It is an arithmetic number, because the mean of its divisors is an integer number (64100928).

Almost surely, 2^254400431 is an apocalyptic number.

254400431 is a deficient number, since it is larger than the sum of its proper divisors (2003281).

254400431 is a wasteful number, since it uses less digits than its factorization.

254400431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2003280.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 254400431 is about 15949.9351409340. The cubic root of 254400431 is about 633.6351788943.

Adding to 254400431 its reverse (134004452), we get a palindrome (388404883).

The spelling of 254400431 in words is "two hundred fifty-four million, four hundred thousand, four hundred thirty-one".