40285212 has 48 divisors (see below), whose sum is σ = 103807872. Its totient is φ = 12057280.

The previous prime is 40285211. The next prime is 40285237. The reversal of 40285212 is 21258204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40285211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9118 + ... + 12794.

It is an arithmetic number, because the mean of its divisors is an integer number (2162664).

Almost surely, 2^40285212 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 40285212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51903936).

40285212 is an abundant number, since it is smaller than the sum of its proper divisors (63522660).

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

40285212 is a wasteful number, since it uses less digits than its factorization.

40285212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3778 (or 3776 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 24.

The square root of 40285212 is about 6347.0632579170. The cubic root of 40285212 is about 342.8061077807.

The spelling of 40285212 in words is "forty million, two hundred eighty-five thousand, two hundred twelve".