403400012 has 12 divisors (see below), whose sum is σ = 706883016. Its totient is φ = 201433440.

The previous prime is 403399999. The next prime is 403400017. The reversal of 403400012 is 210004304.

It is a self number, because there is not a number n which added to its sum of digits gives 403400012.

It is not an unprimeable number, because it can be changed into a prime (403400017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63218 + ... + 69305.

It is an arithmetic number, because the mean of its divisors is an integer number (58906918).

Almost surely, 2^403400012 is an apocalyptic number.

It is an amenable number.

403400012 is a deficient number, since it is larger than the sum of its proper divisors (303483004).

403400012 is a wasteful number, since it uses less digits than its factorization.

403400012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133288 (or 133286 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 403400012 is about 20084.8204373353. The cubic root of 403400012 is about 738.8880377609. Note that the first 3 decimals are identical.

Adding to 403400012 its reverse (210004304), we get a palindrome (613404316).

The spelling of 403400012 in words is "four hundred three million, four hundred thousand, twelve".