421693269 has 8 divisors (see below), whose sum is σ = 562407840. Its totient is φ = 281053776.

The previous prime is 421693253. The next prime is 421693271. The reversal of 421693269 is 962396124.

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

It is not a de Polignac number, because 421693269 - 2⁴ = 421693253 is a prime.

It is a super-2 number, since 2×421693269² = 355650426239812722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 421693269.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421693229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4002 + ... + 29315.

It is an arithmetic number, because the mean of its divisors is an integer number (70300980).

Almost surely, 2^421693269 is an apocalyptic number.

It is an amenable number.

421693269 is a deficient number, since it is larger than the sum of its proper divisors (140714571).

421693269 is a wasteful number, since it uses less digits than its factorization.

421693269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37539.

The product of its digits is 139968, while the sum is 42.

The square root of 421693269 is about 20535.1715113363. The cubic root of 421693269 is about 749.8922920883.

The spelling of 421693269 in words is "four hundred twenty-one million, six hundred ninety-three thousand, two hundred sixty-nine".