421934330 has 32 divisors (see below), whose sum is σ = 800789760. Its totient is φ = 159624000.

The previous prime is 421934323. The next prime is 421934411. The reversal of 421934330 is 33439124.

It is a junction number, because it is equal to n+sod(n) for n = 421934293 and 421934302.

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, 141212 + ... + 144168.

It is an arithmetic number, because the mean of its divisors is an integer number (25024680).

Almost surely, 2^421934330 is an apocalyptic number.

421934330 is a deficient number, since it is larger than the sum of its proper divisors (378855430).

421934330 is a wasteful number, since it uses less digits than its factorization.

421934330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3734.

The product of its (nonzero) digits is 7776, while the sum is 29.

The square root of 421934330 is about 20541.0401391945. The cubic root of 421934330 is about 750.0351568705.

The spelling of 421934330 in words is "four hundred twenty-one million, nine hundred thirty-four thousand, three hundred thirty".