421246782 has 48 divisors (see below), whose sum is σ = 1000771200. Its totient is φ = 126997200.

The previous prime is 421246781. The next prime is 421246783. The reversal of 421246782 is 287642124.

It is an interprime number because it is at equal distance from previous prime (421246781) and next prime (421246783).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421246781) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34057 + ... + 44747.

It is an arithmetic number, because the mean of its divisors is an integer number (20849400).

Almost surely, 2^421246782 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 421246782, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (500385600).

421246782 is an abundant number, since it is smaller than the sum of its proper divisors (579524418).

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

421246782 is a wasteful number, since it uses less digits than its factorization.

421246782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10909 (or 10906 counting only the distinct ones).

The product of its digits is 43008, while the sum is 36.

The square root of 421246782 is about 20524.2973570351. The cubic root of 421246782 is about 749.6275377264.

The spelling of 421246782 in words is "four hundred twenty-one million, two hundred forty-six thousand, seven hundred eighty-two".