254090664 has 24 divisors (see below), whose sum is σ = 688162410. Its totient is φ = 84696864.

The previous prime is 254090657. The next prime is 254090671. The reversal of 254090664 is 466090452.

254090664 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (254090657) and next prime (254090671).

It can be written as a sum of positive squares in only one way, i.e., 144720900 + 109369764 = 12030^2 + 10458^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1764447 + ... + 1764590.

Almost surely, 2^254090664 is an apocalyptic number.

254090664 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

254090664 is an abundant number, since it is smaller than the sum of its proper divisors (434071746).

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

254090664 is a wasteful number, since it uses less digits than its factorization.

254090664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3529049 (or 3529042 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 254090664 is about 15940.2215793884. The cubic root of 254090664 is about 633.3778955410.

The spelling of 254090664 in words is "two hundred fifty-four million, ninety thousand, six hundred sixty-four".