403688140212 has 192 divisors, whose sum is σ = 1150505072640. Its totient is φ = 107752425984.

The previous prime is 403688140211. The next prime is 403688140291. The reversal of 403688140212 is 212041886304.

It is a super-2 number, since 2×403688140212² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (403688140211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 7859398 + ... + 7910594.

It is an arithmetic number, because the mean of its divisors is an integer number (5992213920).

Almost surely, 2^403688140212 is an apocalyptic number.

403688140212 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 403688140212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (575252536320).

403688140212 is an abundant number, since it is smaller than the sum of its proper divisors (746816932428).

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

403688140212 is a wasteful number, since it uses less digits than its factorization.

403688140212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51350 (or 51348 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 39.

The spelling of 403688140212 in words is "four hundred three billion, six hundred eighty-eight million, one hundred forty thousand, two hundred twelve".