40043426 has 8 divisors (see below), whose sum is σ = 60100380. Its totient is φ = 20009968.

The previous prime is 40043417. The next prime is 40043467. The reversal of 40043426 is 62434004.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 39677401 + 366025 = 6299^2 + 605^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 701 + ... + 8976.

Almost surely, 2^40043426 is an apocalyptic number.

40043426 is a deficient number, since it is larger than the sum of its proper divisors (20056954).

40043426 is a wasteful number, since it uses less digits than its factorization.

40043426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11748.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 40043426 is about 6327.9875157905. The cubic root of 40043426 is about 342.1189069339.

The spelling of 40043426 in words is "forty million, forty-three thousand, four hundred twenty-six".