26401956 has 48 divisors (see below), whose sum is σ = 72683520. Its totient is φ = 7299360.

The previous prime is 26401943. The next prime is 26401981. The reversal of 26401956 is 65910462.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2466 + ... + 7673.

It is an arithmetic number, because the mean of its divisors is an integer number (1514240).

Almost surely, 2^26401956 is an apocalyptic number.

It is an amenable number.

26401956 is an abundant number, since it is smaller than the sum of its proper divisors (46281564).

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

26401956 is a wasteful number, since it uses less digits than its factorization.

26401956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10184 (or 10182 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 26401956 is about 5138.2833709324. The cubic root of 26401956 is about 297.7684642063.

The spelling of 26401956 in words is "twenty-six million, four hundred one thousand, nine hundred fifty-six".