26172742 has 8 divisors (see below), whose sum is σ = 40525632. Its totient is φ = 12664200.

The previous prime is 26172739. The next prime is 26172743. The reversal of 26172742 is 24727162.

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

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26172743) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 211009 + ... + 211132.

It is an arithmetic number, because the mean of its divisors is an integer number (5065704).

Almost surely, 2^26172742 is an apocalyptic number.

26172742 is a deficient number, since it is larger than the sum of its proper divisors (14352890).

26172742 is a wasteful number, since it uses less digits than its factorization.

26172742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422174.

The product of its digits is 9408, while the sum is 31.

The square root of 26172742 is about 5115.9302184451. The cubic root of 26172742 is about 296.9042457172.

The spelling of 26172742 in words is "twenty-six million, one hundred seventy-two thousand, seven hundred forty-two".