421109146 has 8 divisors (see below), whose sum is σ = 652040064. Its totient is φ = 203762460.

The previous prime is 421109131. The next prime is 421109153. The reversal of 421109146 is 641901124.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3395980 + ... + 3396103.

It is an arithmetic number, because the mean of its divisors is an integer number (81505008).

Almost surely, 2^421109146 is an apocalyptic number.

421109146 is a deficient number, since it is larger than the sum of its proper divisors (230930918).

421109146 is a wasteful number, since it uses less digits than its factorization.

421109146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6792116.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 421109146 is about 20520.9440815962. The cubic root of 421109146 is about 749.5458856883.

The spelling of 421109146 in words is "four hundred twenty-one million, one hundred nine thousand, one hundred forty-six".