421431846 has 32 divisors (see below), whose sum is σ = 922434048. Its totient is φ = 127297440.

The previous prime is 421431833. The next prime is 421431851. The reversal of 421431846 is 648134124.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 10851 + ... + 30993.

It is an arithmetic number, because the mean of its divisors is an integer number (28826064).

Almost surely, 2^421431846 is an apocalyptic number.

421431846 is an abundant number, since it is smaller than the sum of its proper divisors (501002202).

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

421431846 is a wasteful number, since it uses less digits than its factorization.

421431846 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20476.

The product of its digits is 18432, while the sum is 33.

The square root of 421431846 is about 20528.8052745405. The cubic root of 421431846 is about 749.7372982167.

The spelling of 421431846 in words is "four hundred twenty-one million, four hundred thirty-one thousand, eight hundred forty-six".