843242436 has 36 divisors (see below), whose sum is σ = 2163349552. Its totient is φ = 276884784.

The previous prime is 843242359. The next prime is 843242441. The reversal of 843242436 is 634242348.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×843242436² = 1422115611742428192, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 843242436.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 172390 + ... + 177213.

Almost surely, 2^843242436 is an apocalyptic number.

It is an amenable number.

843242436 is an abundant number, since it is smaller than the sum of its proper divisors (1320107116).

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

843242436 is a wasteful number, since it uses less digits than its factorization.

843242436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349680 (or 349675 counting only the distinct ones).

The product of its digits is 110592, while the sum is 36.

The square root of 843242436 is about 29038.6369514824. The cubic root of 843242436 is about 944.7512707276.

The spelling of 843242436 in words is "eight hundred forty-three million, two hundred forty-two thousand, four hundred thirty-six".