40324220 has 12 divisors (see below), whose sum is σ = 84680904. Its totient is φ = 16129680.

The previous prime is 40324217. The next prime is 40324231. The reversal of 40324220 is 2242304.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1008086 + ... + 1008125.

It is an arithmetic number, because the mean of its divisors is an integer number (7056742).

Almost surely, 2^40324220 is an apocalyptic number.

It is an amenable number.

40324220 is an abundant number, since it is smaller than the sum of its proper divisors (44356684).

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

40324220 is a wasteful number, since it uses less digits than its factorization.

40324220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2016220 (or 2016218 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 40324220 is about 6350.1354316266. The cubic root of 40324220 is about 342.9167179875.

Adding to 40324220 its reverse (2242304), we get a palindrome (42566524).

The spelling of 40324220 in words is "forty million, three hundred twenty-four thousand, two hundred twenty".