40553212 has 24 divisors (see below), whose sum is σ = 82252800. Its totient is φ = 17134320.

The previous prime is 40553203. The next prime is 40553243. The reversal of 40553212 is 21235504.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8212 + ... + 12187.

It is an arithmetic number, because the mean of its divisors is an integer number (3427200).

Almost surely, 2^40553212 is an apocalyptic number.

It is an amenable number.

40553212 is an abundant number, since it is smaller than the sum of its proper divisors (41699588).

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

40553212 is a wasteful number, since it uses less digits than its factorization.

40553212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20481 (or 20479 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 40553212 is about 6368.1403878998. The cubic root of 40553212 is about 343.5646082636.

Adding to 40553212 its reverse (21235504), we get a palindrome (61788716).

The spelling of 40553212 in words is "forty million, five hundred fifty-three thousand, two hundred twelve".