254968642 has 8 divisors (see below), whose sum is σ = 386239932. Its totient is φ = 126222000.

The previous prime is 254968607. The next prime is 254968643. The reversal of 254968642 is 246869452.

It can be written as a sum of positive squares in 2 ways, for example, as 241211961 + 13756681 = 15531^2 + 3709^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 254968592 and 254968601.

It is not an unprimeable number, because it can be changed into a prime (254968643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 630909 + ... + 631312.

Almost surely, 2^254968642 is an apocalyptic number.

254968642 is a deficient number, since it is larger than the sum of its proper divisors (131271290).

254968642 is a wasteful number, since it uses less digits than its factorization.

254968642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1262324.

The product of its digits is 829440, while the sum is 46.

The square root of 254968642 is about 15967.7375354181. The cubic root of 254968642 is about 634.1065758401.

The spelling of 254968642 in words is "two hundred fifty-four million, nine hundred sixty-eight thousand, six hundred forty-two".