40252522 has 16 divisors (see below), whose sum is σ = 64152360. Its totient is φ = 18906048.

The previous prime is 40252519. The next prime is 40252547. The reversal of 40252522 is 22525204.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 39828721 + 423801 = 6311^2 + 651^2 .

It is a junction number, because it is equal to n+sod(n) for n = 40252493 and 40252502.

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, 7233 + ... + 11524.

Almost surely, 2^40252522 is an apocalyptic number.

40252522 is a deficient number, since it is larger than the sum of its proper divisors (23899838).

40252522 is a wasteful number, since it uses less digits than its factorization.

40252522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18825.

The product of its (nonzero) digits is 1600, while the sum is 22.

The square root of 40252522 is about 6344.4875285558. The cubic root of 40252522 is about 342.7133577478.

Adding to 40252522 its reverse (22525204), we get a palindrome (62777726).

The spelling of 40252522 in words is "forty million, two hundred fifty-two thousand, five hundred twenty-two".