8432406 has 24 divisors (see below), whose sum is σ = 18617040. Its totient is φ = 2757456.

The previous prime is 8432401. The next prime is 8432407. The reversal of 8432406 is 6042348.

It is a super-2 number, since 2×8432406² = 142210941897672, 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 8432406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8432401) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3466 + ... + 5373.

It is an arithmetic number, because the mean of its divisors is an integer number (775710).

Almost surely, 2^8432406 is an apocalyptic number.

8432406 is an abundant number, since it is smaller than the sum of its proper divisors (10184634).

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

8432406 is a wasteful number, since it uses less digits than its factorization.

8432406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8900 (or 8897 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 8432406 is about 2903.8605338411. The cubic root of 8432406 is about 203.5403433871.

It can be divided in two parts, 843 and 2406, that added together give a square (3249 = 57²).

The spelling of 8432406 in words is "eight million, four hundred thirty-two thousand, four hundred six".