42059669 has 4 divisors (see below), whose sum is σ = 42566496. Its totient is φ = 41552844.

The previous prime is 42059659. The next prime is 42059671. The reversal of 42059669 is 96695024.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 42059669 - 2¹⁶ = 41994133 is a prime.

It is a super-2 number, since 2×42059669² = 3538031512779122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42059609) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 253289 + ... + 253454.

It is an arithmetic number, because the mean of its divisors is an integer number (10641624).

Almost surely, 2^42059669 is an apocalyptic number.

It is an amenable number.

42059669 is a deficient number, since it is larger than the sum of its proper divisors (506827).

42059669 is an equidigital number, since it uses as much as digits as its factorization.

42059669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 506826.

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

The square root of 42059669 is about 6485.3426278031. The cubic root of 42059669 is about 347.7671985276.

The spelling of 42059669 in words is "forty-two million, fifty-nine thousand, six hundred sixty-nine".