26790638 has 16 divisors (see below), whose sum is σ = 46510080. Its totient is φ = 11335896.

The previous prime is 26790629. The next prime is 26790649. The reversal of 26790638 is 83609762.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 26790595 and 26790604.

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, 11006 + ... + 13217.

It is an arithmetic number, because the mean of its divisors is an integer number (2906880).

Almost surely, 2^26790638 is an apocalyptic number.

26790638 is a deficient number, since it is larger than the sum of its proper divisors (19719442).

26790638 is a wasteful number, since it uses less digits than its factorization.

26790638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24311.

The product of its (nonzero) digits is 108864, while the sum is 41.

The square root of 26790638 is about 5175.9673492015. The cubic root of 26790638 is about 299.2225722793. Note that the first 3 decimals are identical.

The spelling of 26790638 in words is "twenty-six million, seven hundred ninety thousand, six hundred thirty-eight".