421429238293 has 8 divisors (see below), whose sum is σ = 485425805312. Its totient is φ = 358380768816.

The previous prime is 421429238249. The next prime is 421429238297. The reversal of 421429238293 is 392832924124.

It is a happy number.

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

It is not a de Polignac number, because 421429238293 - 2¹⁷ = 421429107221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421429238297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 237023430 + ... + 237025207.

It is an arithmetic number, because the mean of its divisors is an integer number (60678225664).

Almost surely, 2^421429238293 is an apocalyptic number.

It is an amenable number.

421429238293 is a deficient number, since it is larger than the sum of its proper divisors (63996567019).

421429238293 is a wasteful number, since it uses less digits than its factorization.

421429238293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 474048771.

The product of its digits is 1492992, while the sum is 49.

The spelling of 421429238293 in words is "four hundred twenty-one billion, four hundred twenty-nine million, two hundred thirty-eight thousand, two hundred ninety-three".