26622642 has 16 divisors (see below), whose sum is σ = 54250560. Its totient is φ = 8706672.

The previous prime is 26622641. The next prime is 26622643. The reversal of 26622642 is 24622662.

It is an interprime number because it is at equal distance from previous prime (26622641) and next prime (26622643).

It is not an unprimeable number, because it can be changed into a prime (26622641) 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 7 ways as a sum of consecutive naturals, for example, 41542 + ... + 42177.

It is an arithmetic number, because the mean of its divisors is an integer number (3390660).

Almost surely, 2^26622642 is an apocalyptic number.

26622642 is an abundant number, since it is smaller than the sum of its proper divisors (27627918).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

26622642 is a wasteful number, since it uses less digits than its factorization.

26622642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83777.

The product of its digits is 13824, while the sum is 30.

The square root of 26622642 is about 5159.7133641318. The cubic root of 26622642 is about 298.5958155859.

The spelling of 26622642 in words is "twenty-six million, six hundred twenty-two thousand, six hundred forty-two".