426169069 has 16 divisors (see below), whose sum is σ = 461767680. Its totient is φ = 392024880.

The previous prime is 426169067. The next prime is 426169097. The reversal of 426169069 is 960961624.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 426169069 - 2¹ = 426169067 is a prime.

It is a super-2 number, since 2×426169069² = 363240150744653522, 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 (426169063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 115162 + ... + 118804.

It is an arithmetic number, because the mean of its divisors is an integer number (28860480).

Almost surely, 2^426169069 is an apocalyptic number.

It is an amenable number.

426169069 is a deficient number, since it is larger than the sum of its proper divisors (35598611).

426169069 is a wasteful number, since it uses less digits than its factorization.

426169069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3840.

The product of its (nonzero) digits is 139968, while the sum is 43.

The square root of 426169069 is about 20643.8627441668. The cubic root of 426169069 is about 752.5360484270.

The spelling of 426169069 in words is "four hundred twenty-six million, one hundred sixty-nine thousand, sixty-nine".