193420812 has 24 divisors (see below), whose sum is σ = 486032176. Its totient is φ = 59514048.

The previous prime is 193420789. The next prime is 193420831. The reversal of 193420812 is 218024391.

193420812 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×193420812² = 74823221029478688, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 193420812.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 619783 + ... + 620094.

Almost surely, 2^193420812 is an apocalyptic number.

193420812 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

193420812 is an abundant number, since it is smaller than the sum of its proper divisors (292611364).

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

193420812 is a wasteful number, since it uses less digits than its factorization.

193420812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1239897 (or 1239895 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 193420812 is about 13907.5810980918. The cubic root of 193420812 is about 578.3193639035.

The spelling of 193420812 in words is "one hundred ninety-three million, four hundred twenty thousand, eight hundred twelve".