42403569 has 8 divisors (see below), whose sum is σ = 60887232. Its totient is φ = 26094480.

The previous prime is 42403561. The next prime is 42403607. The reversal of 42403569 is 96530424.

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

It is not a de Polignac number, because 42403569 - 2³ = 42403561 is a prime.

It is a super-2 number, since 2×42403569² = 3596125327875522, which contains 22 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (42403561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 543597 + ... + 543674.

It is an arithmetic number, because the mean of its divisors is an integer number (7610904).

Almost surely, 2^42403569 is an apocalyptic number.

It is an amenable number.

42403569 is a deficient number, since it is larger than the sum of its proper divisors (18483663).

42403569 is a wasteful number, since it uses less digits than its factorization.

42403569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1087287.

The product of its (nonzero) digits is 25920, while the sum is 33.

The square root of 42403569 is about 6511.8022850821. The cubic root of 42403569 is about 348.7124639397.

The spelling of 42403569 in words is "forty-two million, four hundred three thousand, five hundred sixty-nine".