40392529 has 2 divisors, whose sum is σ = 40392530. Its totient is φ = 40392528.

The previous prime is 40392511. The next prime is 40392533. The reversal of 40392529 is 92529304.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23746129 + 16646400 = 4873^2 + 4080^2 .

It is a cyclic number.

It is not a de Polignac number, because 40392529 - 2²³ = 32003921 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40392494 and 40392503.

It is not a weakly prime, because it can be changed into another prime (40392509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20196264 + 20196265.

It is an arithmetic number, because the mean of its divisors is an integer number (20196265).

Almost surely, 2^40392529 is an apocalyptic number.

It is an amenable number.

40392529 is a deficient number, since it is larger than the sum of its proper divisors (1).

40392529 is an equidigital number, since it uses as much as digits as its factorization.

40392529 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 40392529 is about 6355.5117024517. The cubic root of 40392529 is about 343.1102417444.

The spelling of 40392529 in words is "forty million, three hundred ninety-two thousand, five hundred twenty-nine".