421035648 has 128 divisors (see below), whose sum is σ = 1227916800. Its totient is φ = 126766080.

The previous prime is 421035619. The next prime is 421035653. The reversal of 421035648 is 846530124.

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

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1110723 + ... + 1111101.

It is an arithmetic number, because the mean of its divisors is an integer number (9593100).

Almost surely, 2^421035648 is an apocalyptic number.

421035648 is a gapful number since it is divisible by the number (48) 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 421035648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (613958400).

421035648 is an abundant number, since it is smaller than the sum of its proper divisors (806881152).

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

421035648 is a wasteful number, since it uses less digits than its factorization.

421035648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 670 (or 658 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 421035648 is about 20519.1531989018. The cubic root of 421035648 is about 749.5022759897.

The spelling of 421035648 in words is "four hundred twenty-one million, thirty-five thousand, six hundred forty-eight".