26939380 has 24 divisors (see below), whose sum is σ = 60925032. Its totient is φ = 9946752.

The previous prime is 26939377. The next prime is 26939389. The reversal of 26939380 is 8393962.

It can be written as a sum of positive squares in 4 ways, for example, as 272484 + 26666896 = 522^2 + 5164^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26939389) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51547 + ... + 52066.

It is an arithmetic number, because the mean of its divisors is an integer number (2538543).

Almost surely, 2^26939380 is an apocalyptic number.

26939380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26939380 is an abundant number, since it is smaller than the sum of its proper divisors (33985652).

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

26939380 is a wasteful number, since it uses less digits than its factorization.

26939380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103635 (or 103633 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 40.

The square root of 26939380 is about 5190.3159826739. The cubic root of 26939380 is about 299.7753132430.

The spelling of 26939380 in words is "twenty-six million, nine hundred thirty-nine thousand, three hundred eighty".