42690569 has 8 divisors (see below), whose sum is σ = 43174080. Its totient is φ = 42210000.

The previous prime is 42690559. The next prime is 42690577. The reversal of 42690569 is 96509624.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42690569 is a prime.

It is a super-2 number, since 2×42690569² = 3644969363087522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42690509) 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, 40094 + ... + 41144.

It is an arithmetic number, because the mean of its divisors is an integer number (5396760).

Almost surely, 2^42690569 is an apocalyptic number.

It is an amenable number.

42690569 is a deficient number, since it is larger than the sum of its proper divisors (483511).

42690569 is a wasteful number, since it uses less digits than its factorization.

42690569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1471.

The product of its (nonzero) digits is 116640, while the sum is 41.

The square root of 42690569 is about 6533.8020325076. The cubic root of 42690569 is about 349.4974256242.

The spelling of 42690569 in words is "forty-two million, six hundred ninety thousand, five hundred sixty-nine".