421711026 has 64 divisors (see below), whose sum is σ = 963947520. Its totient is φ = 121746240.

The previous prime is 421711021. The next prime is 421711033. The reversal of 421711026 is 620117124.

It is a junction number, because it is equal to n+sod(n) for n = 421710987 and 421711005.

It is not an unprimeable number, because it can be changed into a prime (421711021) 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 31 ways as a sum of consecutive naturals, for example, 574956 + ... + 575688.

It is an arithmetic number, because the mean of its divisors is an integer number (15061680).

Almost surely, 2^421711026 is an apocalyptic number.

421711026 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 421711026, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (481973760).

421711026 is an abundant number, since it is smaller than the sum of its proper divisors (542236494).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

421711026 is a wasteful number, since it uses less digits than its factorization.

421711026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1151.

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 421711026 is about 20535.6038625603. The cubic root of 421711026 is about 749.9028176302.

The spelling of 421711026 in words is "four hundred twenty-one million, seven hundred eleven thousand, twenty-six".