421340322 has 24 divisors (see below), whose sum is σ = 912490704. Its totient is φ = 129642864.

The previous prime is 421340321. The next prime is 421340323. The reversal of 421340322 is 223043124.

It is an interprime number because it is at equal distance from previous prime (421340321) and next prime (421340323).

It is not an unprimeable number, because it can be changed into a prime (421340321) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 206748 + ... + 208775.

It is an arithmetic number, because the mean of its divisors is an integer number (38020446).

Almost surely, 2^421340322 is an apocalyptic number.

421340322 is an abundant number, since it is smaller than the sum of its proper divisors (491150382).

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

421340322 is a wasteful number, since it uses less digits than its factorization.

421340322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415554 (or 415541 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 421340322 is about 20526.5759930876. The cubic root of 421340322 is about 749.6830198281.

Adding to 421340322 its reverse (223043124), we get a palindrome (644383446).

The spelling of 421340322 in words is "four hundred twenty-one million, three hundred forty thousand, three hundred twenty-two".