40180663 has 2 divisors, whose sum is σ = 40180664. Its totient is φ = 40180662.

The previous prime is 40180643. The next prime is 40180669. The reversal of 40180663 is 36608104.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40180663 - 2¹⁷ = 40049591 is a prime.

It is a super-2 number, since 2×40180663² = 3228971358239138, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40180669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20090331 + 20090332.

It is an arithmetic number, because the mean of its divisors is an integer number (20090332).

Almost surely, 2^40180663 is an apocalyptic number.

40180663 is a deficient number, since it is larger than the sum of its proper divisors (1).

40180663 is an equidigital number, since it uses as much as digits as its factorization.

40180663 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 40180663 is about 6338.8218936960. The cubic root of 40180663 is about 342.5092984138.

Adding to 40180663 its reverse (36608104), we get a palindrome (76788767).

The spelling of 40180663 in words is "forty million, one hundred eighty thousand, six hundred sixty-three".