421354144 has 12 divisors (see below), whose sum is σ = 829541034. Its totient is φ = 210677056.

The previous prime is 421354121. The next prime is 421354159. The reversal of 421354144 is 441453124.

It can be written as a sum of positive squares in only one way, i.e., 384630544 + 36723600 = 19612^2 + 6060^2 .

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 as a sum of consecutive naturals, namely, 6583627 + ... + 6583690.

Almost surely, 2^421354144 is an apocalyptic number.

It is an amenable number.

421354144 is a deficient number, since it is larger than the sum of its proper divisors (408186890).

421354144 is a wasteful number, since it uses less digits than its factorization.

421354144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13167327 (or 13167319 counting only the distinct ones).

The product of its digits is 7680, while the sum is 28.

The square root of 421354144 is about 20526.9126758020. The cubic root of 421354144 is about 749.6912174812.

The spelling of 421354144 in words is "four hundred twenty-one million, three hundred fifty-four thousand, one hundred forty-four".