26869830 has 32 divisors (see below), whose sum is σ = 69449184. Its totient is φ = 6614016.

The previous prime is 26869823. The next prime is 26869837. The reversal of 26869830 is 3896862.

It is an interprime number because it is at equal distance from previous prime (26869823) and next prime (26869837).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26869837) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34059 + ... + 34838.

It is an arithmetic number, because the mean of its divisors is an integer number (2170287).

Almost surely, 2^26869830 is an apocalyptic number.

26869830 is an abundant number, since it is smaller than the sum of its proper divisors (42579354).

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

26869830 is a wasteful number, since it uses less digits than its factorization.

26869830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68920.

The product of its (nonzero) digits is 124416, while the sum is 42.

The square root of 26869830 is about 5183.6116752704. The cubic root of 26869830 is about 299.5171120366.

The spelling of 26869830 in words is "twenty-six million, eight hundred sixty-nine thousand, eight hundred thirty".