421149328 has 20 divisors (see below), whose sum is σ = 833339520. Its totient is φ = 206093984.

The previous prime is 421149319. The next prime is 421149329. The reversal of 421149328 is 823941124.

It is a junction number, because it is equal to n+sod(n) for n = 421149293 and 421149302.

It is not an unprimeable number, because it can be changed into a prime (421149329) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 279268 + ... + 280771.

It is an arithmetic number, because the mean of its divisors is an integer number (41666976).

Almost surely, 2^421149328 is an apocalyptic number.

It is an amenable number.

421149328 is a deficient number, since it is larger than the sum of its proper divisors (412190192).

421149328 is a wasteful number, since it uses less digits than its factorization.

421149328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 560094 (or 560088 counting only the distinct ones).

The product of its digits is 13824, while the sum is 34.

The square root of 421149328 is about 20521.9231067656. The cubic root of 421149328 is about 749.5697253470.

The spelling of 421149328 in words is "four hundred twenty-one million, one hundred forty-nine thousand, three hundred twenty-eight".