421254512 has 40 divisors (see below), whose sum is σ = 939523200. Its totient is φ = 179232192.

The previous prime is 421254503. The next prime is 421254521. The reversal of 421254512 is 215452124.

It is an interprime number because it is at equal distance from previous prime (421254503) and next prime (421254521).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2039 + ... + 29097.

It is an arithmetic number, because the mean of its divisors is an integer number (23488080).

Almost surely, 2^421254512 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 421254512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (469761600).

421254512 is an abundant number, since it is smaller than the sum of its proper divisors (518268688).

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

421254512 is a wasteful number, since it uses less digits than its factorization.

421254512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27213 (or 27207 counting only the distinct ones).

The product of its digits is 3200, while the sum is 26.

The square root of 421254512 is about 20524.4856695606. The cubic root of 421254512 is about 749.6321229923.

The spelling of 421254512 in words is "four hundred twenty-one million, two hundred fifty-four thousand, five hundred twelve".