421693270 has 32 divisors (see below), whose sum is σ = 793748160. Its totient is φ = 160997760.

The previous prime is 421693253. The next prime is 421693271. The reversal of 421693270 is 72396124.

It is a super-4 number, since 4×421693270⁴ (a number of 36 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421693271) by changing a digit.

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 in 15 ways as a sum of consecutive naturals, for example, 122736 + ... + 126124.

It is an arithmetic number, because the mean of its divisors is an integer number (24804630).

Almost surely, 2^421693270 is an apocalyptic number.

421693270 is a deficient number, since it is larger than the sum of its proper divisors (372054890).

421693270 is a wasteful number, since it uses less digits than its factorization.

421693270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3960.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 421693270 is about 20535.1715356848. The cubic root of 421693270 is about 749.8922926811.

The spelling of 421693270 in words is "four hundred twenty-one million, six hundred ninety-three thousand, two hundred seventy".