421375610 has 16 divisors (see below), whose sum is σ = 778976136. Its totient is φ = 163994688.

The previous prime is 421375609. The next prime is 421375631. The reversal of 421375610 is 16573124.

It can be written as a sum of positive squares in 4 ways, for example, as 282206401 + 139169209 = 16799^2 + 11797^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 569057 + ... + 569796.

Almost surely, 2^421375610 is an apocalyptic number.

421375610 is a deficient number, since it is larger than the sum of its proper divisors (357600526).

421375610 is a wasteful number, since it uses less digits than its factorization.

421375610 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1138897.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 421375610 is about 20527.4355436815. The cubic root of 421375610 is about 749.7039483384.

The spelling of 421375610 in words is "four hundred twenty-one million, three hundred seventy-five thousand, six hundred ten".