421079419 has 4 divisors (see below), whose sum is σ = 422645040. Its totient is φ = 419513800.

The previous prime is 421079413. The next prime is 421079437. The reversal of 421079419 is 914970124.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 421079419 - 2³ = 421079411 is a prime.

It is a super-2 number, since 2×421079419² = 354615754210755122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (421079411) 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, 782407 + ... + 782944.

It is an arithmetic number, because the mean of its divisors is an integer number (105661260).

Almost surely, 2^421079419 is an apocalyptic number.

421079419 is a deficient number, since it is larger than the sum of its proper divisors (1565621).

421079419 is a wasteful number, since it uses less digits than its factorization.

421079419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1565620.

The product of its (nonzero) digits is 18144, while the sum is 37.

The square root of 421079419 is about 20520.2197600318. The cubic root of 421079419 is about 749.5282479214.

The spelling of 421079419 in words is "four hundred twenty-one million, seventy-nine thousand, four hundred nineteen".