40115524 has 6 divisors (see below), whose sum is σ = 70202174. Its totient is φ = 20057760.

The previous prime is 40115503. The next prime is 40115527. The reversal of 40115524 is 42551104.

It can be written as a sum of positive squares in only one way, i.e., 31809600 + 8305924 = 5640^2 + 2882^2 .

It is a junction number, because it is equal to n+sod(n) for n = 40115495 and 40115504.

It is not an unprimeable number, because it can be changed into a prime (40115527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5014437 + ... + 5014444.

Almost surely, 2^40115524 is an apocalyptic number.

It is an amenable number.

40115524 is a deficient number, since it is larger than the sum of its proper divisors (30086650).

40115524 is a wasteful number, since it uses less digits than its factorization.

40115524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10028885 (or 10028883 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 40115524 is about 6333.6817097167. The cubic root of 40115524 is about 342.3241116535.

Adding to 40115524 its reverse (42551104), we get a palindrome (82666628).

The spelling of 40115524 in words is "forty million, one hundred fifteen thousand, five hundred twenty-four".