26940140 has 24 divisors (see below), whose sum is σ = 57259440. Its totient is φ = 10645568.

The previous prime is 26940103. The next prime is 26940143. The reversal of 26940140 is 4104962.

It is a super-2 number, since 2×26940140² = 1451542286439200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26940143) 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 7 ways as a sum of consecutive naturals, for example, 6455 + ... + 9774.

It is an arithmetic number, because the mean of its divisors is an integer number (2385810).

Almost surely, 2^26940140 is an apocalyptic number.

26940140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26940140 is an abundant number, since it is smaller than the sum of its proper divisors (30319300).

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

26940140 is a wasteful number, since it uses less digits than its factorization.

26940140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16321 (or 16319 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 26940140 is about 5190.3891954265. The cubic root of 26940140 is about 299.7781322524.

The spelling of 26940140 in words is "twenty-six million, nine hundred forty thousand, one hundred forty".