421333000 has 64 divisors (see below), whose sum is σ = 1075576320. Its totient is φ = 153208000.

The previous prime is 421332979. The next prime is 421333009. The reversal of 421333000 is 333124.

It is not an unprimeable number, because it can be changed into a prime (421333009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8152 + ... + 30151.

It is an arithmetic number, because the mean of its divisors is an integer number (16805880).

Almost surely, 2^421333000 is an apocalyptic number.

421333000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

421333000 is an abundant number, since it is smaller than the sum of its proper divisors (654243320).

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

421333000 is a wasteful number, since it uses less digits than its factorization.

421333000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38335 (or 38321 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 421333000 is about 20526.3976381634. The cubic root of 421333000 is about 749.6786771700.

Adding to 421333000 its reverse (333124), we get a palindrome (421666124).

The spelling of 421333000 in words is "four hundred twenty-one million, three hundred thirty-three thousand".