42726344 has 8 divisors (see below), whose sum is σ = 80111910. Its totient is φ = 21363168.

The previous prime is 42726311. The next prime is 42726353. The reversal of 42726344 is 44362724.

It can be written as a sum of positive squares in only one way, i.e., 26646244 + 16080100 = 5162^2 + 4010^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 42726344.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2670389 + ... + 2670404.

Almost surely, 2^42726344 is an apocalyptic number.

It is an amenable number.

42726344 is a deficient number, since it is larger than the sum of its proper divisors (37385566).

42726344 is a wasteful number, since it uses less digits than its factorization.

42726344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5340799 (or 5340795 counting only the distinct ones).

The product of its digits is 32256, while the sum is 32.

The square root of 42726344 is about 6536.5391454500. The cubic root of 42726344 is about 349.5950254744.

The spelling of 42726344 in words is "forty-two million, seven hundred twenty-six thousand, three hundred forty-four".