26421442 has 8 divisors (see below), whose sum is σ = 40041036. Its totient is φ = 13074432.

The previous prime is 26421427. The next prime is 26421463. The reversal of 26421442 is 24412462.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 23921881 + 2499561 = 4891^2 + 1581^2 .

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

It is a super-3 number, since 3×26421442³ (a number of 23 digits) contains 333 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, 67903 + ... + 68290.

Almost surely, 2^26421442 is an apocalyptic number.

26421442 is a deficient number, since it is larger than the sum of its proper divisors (13619594).

26421442 is a wasteful number, since it uses less digits than its factorization.

26421442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136292.

The product of its digits is 3072, while the sum is 25.

The square root of 26421442 is about 5140.1791797563. The cubic root of 26421442 is about 297.8417023332.

The spelling of 26421442 in words is "twenty-six million, four hundred twenty-one thousand, four hundred forty-two".