64040026 has 4 divisors (see below), whose sum is σ = 96060042. Its totient is φ = 32020012.

The previous prime is 64040021. The next prime is 64040047. The reversal of 64040026 is 62004046.

64040026 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 64016001 + 24025 = 8001^2 + 155^2 .

It is a super-2 number, since 2×64040026² = 8202249860161352, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 64039979 and 64040006.

It is not an unprimeable number, because it can be changed into a prime (64040021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16010005 + ... + 16010008.

Almost surely, 2^64040026 is an apocalyptic number.

64040026 is a deficient number, since it is larger than the sum of its proper divisors (32020016).

64040026 is a wasteful number, since it uses less digits than its factorization.

64040026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32020015.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 64040026 is about 8002.5012339893. The cubic root of 64040026 is about 400.0833701223.

The spelling of 64040026 in words is "sixty-four million, forty thousand, twenty-six".