26421946 has 8 divisors (see below), whose sum is σ = 39695040. Its totient is φ = 13190268.

The previous prime is 26421937. The next prime is 26421947. The reversal of 26421946 is 64912462.

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

It is not an unprimeable number, because it can be changed into a prime (26421947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8706 + ... + 11341.

It is an arithmetic number, because the mean of its divisors is an integer number (4961880).

Almost surely, 2^26421946 is an apocalyptic number.

26421946 is a deficient number, since it is larger than the sum of its proper divisors (13273094).

26421946 is a wasteful number, since it uses less digits than its factorization.

26421946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20708.

The product of its digits is 20736, while the sum is 34.

The square root of 26421946 is about 5140.2282050508. The cubic root of 26421946 is about 297.8435961392.

The spelling of 26421946 in words is "twenty-six million, four hundred twenty-one thousand, nine hundred forty-six".