40412212 has 6 divisors (see below), whose sum is σ = 70721378. Its totient is φ = 20206104.

The previous prime is 40412209. The next prime is 40412231. The reversal of 40412212 is 21221404.

It can be written as a sum of positive squares in only one way, i.e., 37405456 + 3006756 = 6116^2 + 1734^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5051523 + ... + 5051530.

Almost surely, 2^40412212 is an apocalyptic number.

It is an amenable number.

40412212 is a deficient number, since it is larger than the sum of its proper divisors (30309166).

40412212 is a wasteful number, since it uses less digits than its factorization.

40412212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10103057 (or 10103055 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 40412212 is about 6357.0600123013. The cubic root of 40412212 is about 343.1659644435.

Adding to 40412212 its reverse (21221404), we get a palindrome (61633616).

The spelling of 40412212 in words is "forty million, four hundred twelve thousand, two hundred twelve".