254609478 has 12 divisors (see below), whose sum is σ = 551653908. Its totient is φ = 84869820.

The previous prime is 254609477. The next prime is 254609483. The reversal of 254609478 is 874906452.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (254609477) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7072468 + ... + 7072503.

It is an arithmetic number, because the mean of its divisors is an integer number (45971159).

Almost surely, 2^254609478 is an apocalyptic number.

254609478 is an abundant number, since it is smaller than the sum of its proper divisors (297044430).

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

254609478 is a wasteful number, since it uses less digits than its factorization.

254609478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14144979 (or 14144976 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The square root of 254609478 is about 15956.4870193912. The cubic root of 254609478 is about 633.8086891717.

The spelling of 254609478 in words is "two hundred fifty-four million, six hundred nine thousand, four hundred seventy-eight".