40420222240 has 48 divisors (see below), whose sum is σ = 95516661240. Its totient is φ = 16164044800.

The previous prime is 40420222189. The next prime is 40420222273. The reversal of 40420222240 is 4222202404.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 32056753936 + 8363468304 = 179044^2 + 91452^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 656790 + ... + 715690.

Almost surely, 2^40420222240 is an apocalyptic number.

40420222240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40420222240 is an abundant number, since it is smaller than the sum of its proper divisors (55096439000).

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

40420222240 is a wasteful number, since it uses less digits than its factorization.

40420222240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63205 (or 63197 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 22.

Adding to 40420222240 its reverse (4222202404), we get a palindrome (44642424644).

The spelling of 40420222240 in words is "forty billion, four hundred twenty million, two hundred twenty-two thousand, two hundred forty".