40020522 has 16 divisors (see below), whose sum is σ = 82801440. Its totient is φ = 12880112.

The previous prime is 40020521. The next prime is 40020523. The reversal of 40020522 is 22502004.

It is an interprime number because it is at equal distance from previous prime (40020521) and next prime (40020523).

It is not an unprimeable number, because it can be changed into a prime (40020521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 114828 + ... + 115175.

It is an arithmetic number, because the mean of its divisors is an integer number (5175090).

Almost surely, 2^40020522 is an apocalyptic number.

40020522 is an abundant number, since it is smaller than the sum of its proper divisors (42780918).

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

40020522 is a wasteful number, since it uses less digits than its factorization.

40020522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230037.

The product of its (nonzero) digits is 160, while the sum is 15.

The square root of 40020522 is about 6326.1775188498. The cubic root of 40020522 is about 342.0536662133.

Adding to 40020522 its reverse (22502004), we get a palindrome (62522526).

The spelling of 40020522 in words is "forty million, twenty thousand, five hundred twenty-two".