40142522 has 16 divisors (see below), whose sum is σ = 68936832. Its totient is φ = 17173680.

The previous prime is 40142519. The next prime is 40142527. The reversal of 40142522 is 22524104.

It is a happy number.

It is a super-2 number, since 2×40142522² = 3222844145040968, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40142494 and 40142503.

It is not an unprimeable number, because it can be changed into a prime (40142527) 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, 6947 + ... + 11337.

It is an arithmetic number, because the mean of its divisors is an integer number (4308552).

Almost surely, 2^40142522 is an apocalyptic number.

40142522 is a deficient number, since it is larger than the sum of its proper divisors (28794310).

40142522 is a wasteful number, since it uses less digits than its factorization.

40142522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5053.

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 40142522 is about 6335.8126550585. The cubic root of 40142522 is about 342.4008898589.

Adding to 40142522 its reverse (22524104), we get a palindrome (62666626).

The spelling of 40142522 in words is "forty million, one hundred forty-two thousand, five hundred twenty-two".