26742440 has 32 divisors (see below), whose sum is σ = 60345000. Its totient is φ = 10665984.

The previous prime is 26742347. The next prime is 26742473. The reversal of 26742440 is 4424762.

It can be written as a sum of positive squares in 4 ways, for example, as 19201924 + 7540516 = 4382^2 + 2746^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17216 + ... + 18704.

Almost surely, 2^26742440 is an apocalyptic number.

26742440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26742440 is an abundant number, since it is smaller than the sum of its proper divisors (33602560).

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

26742440 is a wasteful number, since it uses less digits than its factorization.

26742440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1949 (or 1945 counting only the distinct ones).

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

The square root of 26742440 is about 5171.3093119635. The cubic root of 26742440 is about 299.0430246472.

The spelling of 26742440 in words is "twenty-six million, seven hundred forty-two thousand, four hundred forty".