12406443430 has 24 divisors (see below), whose sum is σ = 23722499088. Its totient is φ = 4670659968.

The previous prime is 12406443419. The next prime is 12406443431. The reversal of 12406443430 is 3434460421.

It is a super-3 number, since 3×12406443430³ (a number of 31 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12406443392 and 12406443401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12406443431) 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, 2143554 + ... + 2149333.

It is an arithmetic number, because the mean of its divisors is an integer number (988437462).

Almost surely, 2^12406443430 is an apocalyptic number.

12406443430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12406443430 is a deficient number, since it is larger than the sum of its proper divisors (11316055658).

12406443430 is a wasteful number, since it uses less digits than its factorization.

12406443430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4292928 (or 4292911 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 31.

The spelling of 12406443430 in words is "twelve billion, four hundred six million, four hundred forty-three thousand, four hundred thirty".