26890430 has 64 divisors (see below), whose sum is σ = 59719680. Its totient is φ = 8507904.

The previous prime is 26890417. The next prime is 26890433. The reversal of 26890430 is 3409862.

It is a super-3 number, since 3×26890430³ (a number of 23 digits) contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26890433) 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 in 31 ways as a sum of consecutive naturals, for example, 70019 + ... + 70401.

It is an arithmetic number, because the mean of its divisors is an integer number (933120).

Almost surely, 2^26890430 is an apocalyptic number.

26890430 is an abundant number, since it is smaller than the sum of its proper divisors (32829250).

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

26890430 is a wasteful number, since it uses less digits than its factorization.

26890430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 473.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 26890430 is about 5185.5983261336. The cubic root of 26890430 is about 299.5936349920.

The spelling of 26890430 in words is "twenty-six million, eight hundred ninety thousand, four hundred thirty".