26430664 has 16 divisors (see below), whose sum is σ = 53369820. Its totient is φ = 12198720.

The previous prime is 26430661. The next prime is 26430671. The reversal of 26430664 is 46603462.

It can be written as a sum of positive squares in 2 ways, for example, as 24304900 + 2125764 = 4930^2 + 1458^2 .

It is not an unprimeable number, because it can be changed into a prime (26430661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 126967 + ... + 127174.

Almost surely, 2^26430664 is an apocalyptic number.

It is an amenable number.

26430664 is an abundant number, since it is smaller than the sum of its proper divisors (26939156).

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

26430664 is a wasteful number, since it uses less digits than its factorization.

26430664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254160 (or 254156 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 31.

The square root of 26430664 is about 5141.0761519355. The cubic root of 26430664 is about 297.8763506651.

The spelling of 26430664 in words is "twenty-six million, four hundred thirty thousand, six hundred sixty-four".