40200212 has 12 divisors (see below), whose sum is σ = 75762036. Its totient is φ = 18553920.

The previous prime is 40200203. The next prime is 40200253. The reversal of 40200212 is 21200204.

It can be written as a sum of positive squares in 2 ways, for example, as 4726276 + 35473936 = 2174^2 + 5956^2 .

It is a junction number, because it is equal to n+sod(n) for n = 40200193 and 40200202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 386489 + ... + 386592.

It is an arithmetic number, because the mean of its divisors is an integer number (6313503).

Almost surely, 2^40200212 is an apocalyptic number.

It is an amenable number.

40200212 is a deficient number, since it is larger than the sum of its proper divisors (35561824).

40200212 is a wasteful number, since it uses less digits than its factorization.

40200212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 773098 (or 773096 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 40200212 is about 6340.3637119648. The cubic root of 40200212 is about 342.5648361458.

Adding to 40200212 its reverse (21200204), we get a palindrome (61400416).

The spelling of 40200212 in words is "forty million, two hundred thousand, two hundred twelve".