26128442 has 16 divisors (see below), whose sum is σ = 39868200. Its totient is φ = 12840960.

The previous prime is 26128433. The next prime is 26128457. The reversal of 26128442 is 24482162.

It can be written as a sum of positive squares in 4 ways, for example, as 26020201 + 108241 = 5101^2 + 329^2 .

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, 40442 + ... + 41082.

Almost surely, 2^26128442 is an apocalyptic number.

26128442 is a deficient number, since it is larger than the sum of its proper divisors (13739758).

26128442 is a wasteful number, since it uses less digits than its factorization.

26128442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 961.

The product of its digits is 6144, while the sum is 29.

The square root of 26128442 is about 5111.5987714217. The cubic root of 26128442 is about 296.7366376778.

The spelling of 26128442 in words is "twenty-six million, one hundred twenty-eight thousand, four hundred forty-two".