421071854 has 16 divisors (see below), whose sum is σ = 722832000. Its totient is φ = 180210744.

The previous prime is 421071841. The next prime is 421071899. The reversal of 421071854 is 458170124.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 421071854.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10004 + ... + 30695.

It is an arithmetic number, because the mean of its divisors is an integer number (45177000).

Almost surely, 2^421071854 is an apocalyptic number.

421071854 is a deficient number, since it is larger than the sum of its proper divisors (301760146).

421071854 is a wasteful number, since it uses less digits than its factorization.

421071854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41447.

The product of its (nonzero) digits is 8960, while the sum is 32.

The square root of 421071854 is about 20520.0354288193. The cubic root of 421071854 is about 749.5237592867.

The spelling of 421071854 in words is "four hundred twenty-one million, seventy-one thousand, eight hundred fifty-four".