843400432 has 40 divisors (see below), whose sum is σ = 1948732416. Its totient is φ = 345740736.

The previous prime is 843400403. The next prime is 843400469. The reversal of 843400432 is 234004348.

It is a super-2 number, since 2×843400432² = 1422648577395573248, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 843400432.

It is a congruent number.

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, 161128 + ... + 166279.

Almost surely, 2^843400432 is an apocalyptic number.

It is an amenable number.

843400432 is an abundant number, since it is smaller than the sum of its proper divisors (1105331984).

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

843400432 is a wasteful number, since it uses less digits than its factorization.

843400432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327445 (or 327439 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

The square root of 843400432 is about 29041.3572685575. The cubic root of 843400432 is about 944.8102721859.

The spelling of 843400432 in words is "eight hundred forty-three million, four hundred thousand, four hundred thirty-two".