421396293 has 8 divisors (see below), whose sum is σ = 577047328. Its totient is φ = 273338064.

The previous prime is 421396291. The next prime is 421396343. The reversal of 421396293 is 392693124.

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

It is not a de Polignac number, because 421396293 - 2¹ = 421396291 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421396291) 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, 1898071 + ... + 1898292.

It is an arithmetic number, because the mean of its divisors is an integer number (72130916).

Almost surely, 2^421396293 is an apocalyptic number.

It is an amenable number.

421396293 is a deficient number, since it is larger than the sum of its proper divisors (155651035).

421396293 is a wasteful number, since it uses less digits than its factorization.

421396293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3796403.

The product of its digits is 69984, while the sum is 39.

The square root of 421396293 is about 20527.9393266835. The cubic root of 421396293 is about 749.7162144123.

The spelling of 421396293 in words is "four hundred twenty-one million, three hundred ninety-six thousand, two hundred ninety-three".