421984370 has 32 divisors (see below), whose sum is σ = 822970368. Its totient is φ = 155167488.

The previous prime is 421984361. The next prime is 421984373. The reversal of 421984370 is 73489124.

It is not an unprimeable number, because it can be changed into a prime (421984373) 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, 21554 + ... + 36173.

It is an arithmetic number, because the mean of its divisors is an integer number (25717824).

Almost surely, 2^421984370 is an apocalyptic number.

421984370 is a deficient number, since it is larger than the sum of its proper divisors (400985998).

421984370 is a wasteful number, since it uses less digits than its factorization.

421984370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57794.

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 421984370 is about 20542.2581524038. The cubic root of 421984370 is about 750.0648062519.

The spelling of 421984370 in words is "four hundred twenty-one million, nine hundred eighty-four thousand, three hundred seventy".