40653212 has 6 divisors (see below), whose sum is σ = 71143128. Its totient is φ = 20326604.

The previous prime is 40653199. The next prime is 40653253. The reversal of 40653212 is 21235604.

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, 5081648 + ... + 5081655.

It is an arithmetic number, because the mean of its divisors is an integer number (11857188).

Almost surely, 2^40653212 is an apocalyptic number.

It is an amenable number.

40653212 is a deficient number, since it is larger than the sum of its proper divisors (30489916).

40653212 is a wasteful number, since it uses less digits than its factorization.

40653212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10163307 (or 10163305 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 40653212 is about 6375.9871392593. The cubic root of 40653212 is about 343.8467746482.

Adding to 40653212 its reverse (21235604), we get a palindrome (61888816).

The spelling of 40653212 in words is "forty million, six hundred fifty-three thousand, two hundred twelve".