26131906 has 8 divisors (see below), whose sum is σ = 40032000. Its totient is φ = 12787908.

The previous prime is 26131849. The next prime is 26131927. The reversal of 26131906 is 60913162.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×26131906² = 1365753022385672, which contains 22 as substring.

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, 138906 + ... + 139093.

It is an arithmetic number, because the mean of its divisors is an integer number (5004000).

Almost surely, 2^26131906 is an apocalyptic number.

26131906 is a deficient number, since it is larger than the sum of its proper divisors (13900094).

26131906 is a wasteful number, since it uses less digits than its factorization.

26131906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278048.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 26131906 is about 5111.9375974282. The cubic root of 26131906 is about 296.7497504674.

The spelling of 26131906 in words is "twenty-six million, one hundred thirty-one thousand, nine hundred six".