421325464 has 48 divisors (see below), whose sum is σ = 933022800. Its totient is φ = 174720960.

The previous prime is 421325459. The next prime is 421325473. The reversal of 421325464 is 464523124.

It is a super-2 number, since 2×421325464² = 355030293229630592, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 49902 + ... + 57730.

It is an arithmetic number, because the mean of its divisors is an integer number (19437975).

Almost surely, 2^421325464 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 421325464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (466511400).

421325464 is an abundant number, since it is smaller than the sum of its proper divisors (511697336).

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

421325464 is a wasteful number, since it uses less digits than its factorization.

421325464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7904 (or 7869 counting only the distinct ones).

The product of its digits is 23040, while the sum is 31.

The square root of 421325464 is about 20526.2140688438. The cubic root of 421325464 is about 749.6742075366.

Adding to 421325464 its reverse (464523124), we get a palindrome (885848588).

The spelling of 421325464 in words is "four hundred twenty-one million, three hundred twenty-five thousand, four hundred sixty-four".