26564442 has 16 divisors (see below), whose sum is σ = 53536032. Its totient is φ = 8786960.

The previous prime is 26564441. The next prime is 26564443. The reversal of 26564442 is 24446562.

It is an interprime number because it is at equal distance from previous prime (26564441) and next prime (26564443).

It is not an unprimeable number, because it can be changed into a prime (26564441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16113 + ... + 17684.

It is an arithmetic number, because the mean of its divisors is an integer number (3346002).

Almost surely, 2^26564442 is an apocalyptic number.

26564442 is an abundant number, since it is smaller than the sum of its proper divisors (26971590).

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

26564442 is a wasteful number, since it uses less digits than its factorization.

26564442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33933.

The product of its digits is 46080, while the sum is 33.

The square root of 26564442 is about 5154.0704302522. The cubic root of 26564442 is about 298.3780691595.

The spelling of 26564442 in words is "twenty-six million, five hundred sixty-four thousand, four hundred forty-two".