40206403204212 has 48 divisors (see below), whose sum is σ = 107219317385600. Its totient is φ = 11487303539712.

The previous prime is 40206403204159. The next prime is 40206403204267. The reversal of 40206403204212 is 21240230460204.

It is a self number, because there is not a number n which added to its sum of digits gives 40206403204212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 944713 + ... + 9016944.

Almost surely, 2^{40206403204212} is an apocalyptic number.

40206403204212 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

40206403204212 is an abundant number, since it is smaller than the sum of its proper divisors (67012914181388).

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

40206403204212 is a wasteful number, since it uses less digits than its factorization.

40206403204212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10009720 (or 10009718 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 40206403204212 its reverse (21240230460204), we get a palindrome (61446633664416).

The spelling of 40206403204212 in words is "forty trillion, two hundred six billion, four hundred three million, two hundred four thousand, two hundred twelve".