421595344 has 20 divisors (see below), whose sum is σ = 817464420. Its totient is φ = 210636800.

The previous prime is 421595309. The next prime is 421595347. The reversal of 421595344 is 443595124.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 30030400 + 391564944 = 5480^2 + 19788^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421595347) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13194 + ... + 31894.

It is an arithmetic number, because the mean of its divisors is an integer number (40873221).

Almost surely, 2^421595344 is an apocalyptic number.

It is an amenable number.

421595344 is a deficient number, since it is larger than the sum of its proper divisors (395869076).

421595344 is a wasteful number, since it uses less digits than its factorization.

421595344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20118 (or 20112 counting only the distinct ones).

The product of its digits is 86400, while the sum is 37.

The square root of 421595344 is about 20532.7870490102. The cubic root of 421595344 is about 749.8342412940.

The spelling of 421595344 in words is "four hundred twenty-one million, five hundred ninety-five thousand, three hundred forty-four".