420889328 has 30 divisors (see below), whose sum is σ = 852487104. Its totient is φ = 201290848.

The previous prime is 420889307. The next prime is 420889361. The reversal of 420889328 is 823988024.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 16400 + ... + 33327.

Almost surely, 2^420889328 is an apocalyptic number.

It is an amenable number.

420889328 is an abundant number, since it is smaller than the sum of its proper divisors (431597776).

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

420889328 is a wasteful number, since it uses less digits than its factorization.

420889328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49781 (or 49752 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 44.

The square root of 420889328 is about 20515.5874397981. The cubic root of 420889328 is about 749.4154425826.

The spelling of 420889328 in words is "four hundred twenty million, eight hundred eighty-nine thousand, three hundred twenty-eight".