26820142 has 4 divisors (see below), whose sum is σ = 40230216. Its totient is φ = 13410070.

The previous prime is 26820137. The next prime is 26820151. The reversal of 26820142 is 24102862.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6705034 + ... + 6705037.

It is an arithmetic number, because the mean of its divisors is an integer number (10057554).

Almost surely, 2^26820142 is an apocalyptic number.

26820142 is a deficient number, since it is larger than the sum of its proper divisors (13410074).

26820142 is a wasteful number, since it uses less digits than its factorization.

26820142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13410073.

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 26820142 is about 5178.8166602034. The cubic root of 26820142 is about 299.3323746159.

It can be divided in two parts, 26820 and 142, that added together give a palindrome (26962).

The spelling of 26820142 in words is "twenty-six million, eight hundred twenty thousand, one hundred forty-two".