421886146 has 64 divisors (see below), whose sum is σ = 754790400. Its totient is φ = 174787200.

The previous prime is 421886141. The next prime is 421886183. The reversal of 421886146 is 641688124.

It is a junction number, because it is equal to n+sod(n) for n = 421886099 and 421886108.

It is not an unprimeable number, because it can be changed into a prime (421886141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1765095 + ... + 1765333.

It is an arithmetic number, because the mean of its divisors is an integer number (11793600).

Almost surely, 2^421886146 is an apocalyptic number.

421886146 is a deficient number, since it is larger than the sum of its proper divisors (332904254).

421886146 is a wasteful number, since it uses less digits than its factorization.

421886146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 415.

The product of its digits is 73728, while the sum is 40.

The square root of 421886146 is about 20539.8672342350. The cubic root of 421886146 is about 750.0066049789.

The spelling of 421886146 in words is "four hundred twenty-one million, eight hundred eighty-six thousand, one hundred forty-six".