254640328 has 8 divisors (see below), whose sum is σ = 477450630. Its totient is φ = 127320160.

The previous prime is 254640317. The next prime is 254640361. The reversal of 254640328 is 823046452.

It can be written as a sum of positive squares in only one way, i.e., 144432324 + 110208004 = 12018^2 + 10498^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 254640293 and 254640302.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15915013 + ... + 15915028.

Almost surely, 2^254640328 is an apocalyptic number.

It is an amenable number.

254640328 is a deficient number, since it is larger than the sum of its proper divisors (222810302).

254640328 is a wasteful number, since it uses less digits than its factorization.

254640328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31830047 (or 31830043 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 34.

The square root of 254640328 is about 15957.4536815872. The cubic root of 254640328 is about 633.8342868158.

The spelling of 254640328 in words is "two hundred fifty-four million, six hundred forty thousand, three hundred twenty-eight".