40222040 has 16 divisors (see below), whose sum is σ = 90499680. Its totient is φ = 16088800.

The previous prime is 40222033. The next prime is 40222057. The reversal of 40222040 is 4022204.

It is a happy number.

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, 502736 + ... + 502815.

It is an arithmetic number, because the mean of its divisors is an integer number (5656230).

Almost surely, 2^40222040 is an apocalyptic number.

40222040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40222040 is an abundant number, since it is smaller than the sum of its proper divisors (50277640).

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

40222040 is a wasteful number, since it uses less digits than its factorization.

40222040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1005562 (or 1005558 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 14.

The square root of 40222040 is about 6342.0848307162. The cubic root of 40222040 is about 342.6268271313.

Adding to 40222040 its reverse (4022204), we get a palindrome (44244244).

The spelling of 40222040 in words is "forty million, two hundred twenty-two thousand, forty".