421020794 has 8 divisors (see below), whose sum is σ = 631964928. Its totient is φ = 210365820.

The previous prime is 421020781. The next prime is 421020797. The reversal of 421020794 is 497020124.

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (421020797) 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, 68612 + ... + 74495.

It is an arithmetic number, because the mean of its divisors is an integer number (78995616).

Almost surely, 2^421020794 is an apocalyptic number.

421020794 is a deficient number, since it is larger than the sum of its proper divisors (210944134).

421020794 is a wasteful number, since it uses less digits than its factorization.

421020794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144580.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 421020794 is about 20518.7912412013. The cubic root of 421020794 is about 749.4934618210.

The spelling of 421020794 in words is "four hundred twenty-one million, twenty thousand, seven hundred ninety-four".