421829632 has 88 divisors (see below), whose sum is σ = 984197600. Its totient is φ = 180633600.

The previous prime is 421829627. The next prime is 421829633. The reversal of 421829632 is 236928124.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 421829591 and 421829600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421829633) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 350632 + ... + 351832.

Almost surely, 2^421829632 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 421829632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (492098800).

421829632 is an abundant number, since it is smaller than the sum of its proper divisors (562367968).

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

421829632 is an equidigital number, since it uses as much as digits as its factorization.

421829632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1242 (or 1210 counting only the distinct ones).

The product of its digits is 41472, while the sum is 37.

The square root of 421829632 is about 20538.4914733288. The cubic root of 421829632 is about 749.9731142955.

The spelling of 421829632 in words is "four hundred twenty-one million, eight hundred twenty-nine thousand, six hundred thirty-two".