421969512 has 32 divisors (see below), whose sum is σ = 1116979200. Its totient is φ = 132382464.

The previous prime is 421969511. The next prime is 421969519. The reversal of 421969512 is 215969124.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (421969511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 516712 + ... + 517527.

It is an arithmetic number, because the mean of its divisors is an integer number (34905600).

Almost surely, 2^421969512 is an apocalyptic number.

It is an amenable number.

421969512 is an abundant number, since it is smaller than the sum of its proper divisors (695009688).

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

421969512 is a wasteful number, since it uses less digits than its factorization.

421969512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1034265 (or 1034261 counting only the distinct ones).

The product of its digits is 38880, while the sum is 39.

The square root of 421969512 is about 20541.8965044613. The cubic root of 421969512 is about 750.0560029292.

The spelling of 421969512 in words is "four hundred twenty-one million, nine hundred sixty-nine thousand, five hundred twelve".