40422320 has 20 divisors (see below), whose sum is σ = 93982080. Its totient is φ = 16168896.

The previous prime is 40422307. The next prime is 40422341. The reversal of 40422320 is 2322404.

It is a tau number, because it is divible by the number of its divisors (20).

It is a zygodrome in base 3.

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, 252560 + ... + 252719.

It is an arithmetic number, because the mean of its divisors is an integer number (4699104).

Almost surely, 2^40422320 is an apocalyptic number.

40422320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40422320 is an abundant number, since it is smaller than the sum of its proper divisors (53559760).

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

40422320 is a wasteful number, since it uses less digits than its factorization.

40422320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505292 (or 505286 counting only the distinct ones).

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

The square root of 40422320 is about 6357.8549841908. The cubic root of 40422320 is about 343.1945732248.

Adding to 40422320 its reverse (2322404), we get a palindrome (42744724).

The spelling of 40422320 in words is "forty million, four hundred twenty-two thousand, three hundred twenty".