40320222 has 16 divisors (see below), whose sum is σ = 80766720. Its totient is φ = 13419032.

The previous prime is 40320221. The next prime is 40320229. The reversal of 40320222 is 22202304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40320221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 822 + ... + 9017.

It is an arithmetic number, because the mean of its divisors is an integer number (5047920).

Almost surely, 2^40320222 is an apocalyptic number.

40320222 is an abundant number, since it is smaller than the sum of its proper divisors (40446498).

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

40320222 is a wasteful number, since it uses less digits than its factorization.

40320222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10527.

The product of its (nonzero) digits is 192, while the sum is 15.

The square root of 40320222 is about 6349.8206273878. The cubic root of 40320222 is about 342.9053846305.

Adding to 40320222 its reverse (22202304), we get a palindrome (62522526).

The spelling of 40320222 in words is "forty million, three hundred twenty thousand, two hundred twenty-two".