26690630 has 16 divisors (see below), whose sum is σ = 50572080. Its totient is φ = 10114272.

The previous prime is 26690623. The next prime is 26690639. The reversal of 26690630 is 3609662.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26690639) 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 7 ways as a sum of consecutive naturals, for example, 70049 + ... + 70428.

It is an arithmetic number, because the mean of its divisors is an integer number (3160755).

Almost surely, 2^26690630 is an apocalyptic number.

26690630 is a deficient number, since it is larger than the sum of its proper divisors (23881450).

26690630 is a wasteful number, since it uses less digits than its factorization.

26690630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140503.

The product of its (nonzero) digits is 11664, while the sum is 32.

The square root of 26690630 is about 5166.2975136939. The cubic root of 26690630 is about 298.8497808073.

The spelling of 26690630 in words is "twenty-six million, six hundred ninety thousand, six hundred thirty".