421026319 has 4 divisors (see below), whose sum is σ = 481172944. Its totient is φ = 360879696.

The previous prime is 421026317. The next prime is 421026323. The reversal of 421026319 is 913620124.

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 421026319 - 2¹ = 421026317 is a prime.

It is a super-2 number, since 2×421026319² = 354526322581379522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421026317) 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 3 ways as a sum of consecutive naturals, for example, 30073302 + ... + 30073315.

It is an arithmetic number, because the mean of its divisors is an integer number (120293236).

Almost surely, 2^421026319 is an apocalyptic number.

421026319 is a deficient number, since it is larger than the sum of its proper divisors (60146625).

421026319 is an equidigital number, since it uses as much as digits as its factorization.

421026319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60146624.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 421026319 is about 20518.9258734467. The cubic root of 421026319 is about 749.4967403077.

The spelling of 421026319 in words is "four hundred twenty-one million, twenty-six thousand, three hundred nineteen".