421248500 has 24 divisors (see below), whose sum is σ = 920007816. Its totient is φ = 168499200.

The previous prime is 421248469. The next prime is 421248521. The reversal of 421248500 is 5842124.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 13924 + 421234576 = 118^2 + 20524^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 421248500.

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, 420749 + ... + 421748.

It is an arithmetic number, because the mean of its divisors is an integer number (38333659).

Almost surely, 2^421248500 is an apocalyptic number.

It is an amenable number.

421248500 is an abundant number, since it is smaller than the sum of its proper divisors (498759316).

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

421248500 is a wasteful number, since it uses less digits than its factorization.

421248500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 842516 (or 842504 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 26.

The square root of 421248500 is about 20524.3392098260. The cubic root of 421248500 is about 749.6285568111.

The spelling of 421248500 in words is "four hundred twenty-one million, two hundred forty-eight thousand, five hundred".