26140990 has 16 divisors (see below), whose sum is σ = 48148848. Its totient is φ = 10213056.

The previous prime is 26140973. The next prime is 26141023. The reversal of 26140990 is 9904162.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29967 + ... + 30826.

It is an arithmetic number, because the mean of its divisors is an integer number (3009303).

Almost surely, 2^26140990 is an apocalyptic number.

26140990 is a deficient number, since it is larger than the sum of its proper divisors (22007858).

26140990 is a wasteful number, since it uses less digits than its factorization.

26140990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60843.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 26140990 is about 5112.8260287242. The cubic root of 26140990 is about 296.7841319682.

The spelling of 26140990 in words is "twenty-six million, one hundred forty thousand, nine hundred ninety".