40532212 has 36 divisors (see below), whose sum is σ = 82966464. Its totient is φ = 17275440.

The previous prime is 40532207. The next prime is 40532213. The reversal of 40532212 is 21223504.

It is a super-2 number, since 2×40532212² = 3285720419225888, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40532212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40532213) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44037 + ... + 44947.

It is an arithmetic number, because the mean of its divisors is an integer number (2304624).

Almost surely, 2^40532212 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40532212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41483232).

40532212 is an abundant number, since it is smaller than the sum of its proper divisors (42434252).

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

40532212 is a wasteful number, since it uses less digits than its factorization.

40532212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1156 (or 1147 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 40532212 is about 6366.4913413905. The cubic root of 40532212 is about 343.5052944045.

Adding to 40532212 its reverse (21223504), we get a palindrome (61755716).

The spelling of 40532212 in words is "forty million, five hundred thirty-two thousand, two hundred twelve".