40575442 has 8 divisors (see below), whose sum is σ = 61058556. Its totient is φ = 20222592.

The previous prime is 40575433. The next prime is 40575529. The reversal of 40575442 is 24457504.

It can be written as a sum of positive squares in 2 ways, for example, as 32729841 + 7845601 = 5721^2 + 2801^2 .

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, 31783 + ... + 33034.

Almost surely, 2^40575442 is an apocalyptic number.

40575442 is a deficient number, since it is larger than the sum of its proper divisors (20483114).

40575442 is a wasteful number, since it uses less digits than its factorization.

40575442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65132.

The product of its (nonzero) digits is 22400, while the sum is 31.

The square root of 40575442 is about 6369.8855562718. The cubic root of 40575442 is about 343.6273739136.

The spelling of 40575442 in words is "forty million, five hundred seventy-five thousand, four hundred forty-two".