26406140 has 12 divisors (see below), whose sum is σ = 55452936. Its totient is φ = 10562448.

The previous prime is 26406131. The next prime is 26406157. The reversal of 26406140 is 4160462.

It is a happy number.

It is a hoax number, since the sum of its digits (23) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 660134 + ... + 660173.

It is an arithmetic number, because the mean of its divisors is an integer number (4621078).

Almost surely, 2^26406140 is an apocalyptic number.

26406140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26406140 is an abundant number, since it is smaller than the sum of its proper divisors (29046796).

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

26406140 is a wasteful number, since it uses less digits than its factorization.

26406140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1320316 (or 1320314 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 26406140 is about 5138.6904946689. The cubic root of 26406140 is about 297.7841928067.

The spelling of 26406140 in words is "twenty-six million, four hundred six thousand, one hundred forty".