26442740 has 12 divisors (see below), whose sum is σ = 55529796. Its totient is φ = 10577088.

The previous prime is 26442739. The next prime is 26442749. The reversal of 26442740 is 4724462.

It can be written as a sum of positive squares in 2 ways, for example, as 20322064 + 6120676 = 4508^2 + 2474^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26442749) 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, 661049 + ... + 661088.

It is an arithmetic number, because the mean of its divisors is an integer number (4627483).

Almost surely, 2^26442740 is an apocalyptic number.

26442740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26442740 is an abundant number, since it is smaller than the sum of its proper divisors (29087056).

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

26442740 is a wasteful number, since it uses less digits than its factorization.

26442740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1322146 (or 1322144 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 29.

The square root of 26442740 is about 5142.2504800914. The cubic root of 26442740 is about 297.9217096858.

The spelling of 26442740 in words is "twenty-six million, four hundred forty-two thousand, seven hundred forty".