421252480 has 128 divisors (see below), whose sum is σ = 1120327200. Its totient is φ = 150159360.

The previous prime is 421252457. The next prime is 421252483. The reversal of 421252480 is 84252124.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421252483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 372556 + ... + 373684.

Almost surely, 2^421252480 is an apocalyptic number.

421252480 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 421252480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (560163600).

421252480 is an abundant number, since it is smaller than the sum of its proper divisors (699074720).

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

421252480 is a wasteful number, since it uses less digits than its factorization.

421252480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1212 (or 1200 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 28.

The square root of 421252480 is about 20524.4361676515. The cubic root of 421252480 is about 749.6309176600.

The spelling of 421252480 in words is "four hundred twenty-one million, two hundred fifty-two thousand, four hundred eighty".