421771092 has 12 divisors (see below), whose sum is σ = 984132576. Its totient is φ = 140590360.

The previous prime is 421771069. The next prime is 421771109. The reversal of 421771092 is 290177124.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

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, 17573784 + ... + 17573807.

It is an arithmetic number, because the mean of its divisors is an integer number (82011048).

Almost surely, 2^421771092 is an apocalyptic number.

It is an amenable number.

421771092 is an abundant number, since it is smaller than the sum of its proper divisors (562361484).

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

421771092 is a wasteful number, since it uses less digits than its factorization.

421771092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35147598 (or 35147596 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 33.

The square root of 421771092 is about 20537.0662948728. The cubic root of 421771092 is about 749.9384198329.

The spelling of 421771092 in words is "four hundred twenty-one million, seven hundred seventy-one thousand, ninety-two".