40386181090 has 32 divisors (see below), whose sum is σ = 72832782960. Its totient is φ = 16123920384.

The previous prime is 40386181013. The next prime is 40386181093. The reversal of 40386181090 is 9018168304.

It can be written as a sum of positive squares in 8 ways, for example, as 7475504521 + 32910676569 = 86461^2 + 181413^2 .

It is not an unprimeable number, because it can be changed into a prime (40386181093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22726282 + ... + 22728058.

Almost surely, 2^40386181090 is an apocalyptic number.

40386181090 is a deficient number, since it is larger than the sum of its proper divisors (32446601870).

40386181090 is a wasteful number, since it uses less digits than its factorization.

40386181090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4806.

The product of its (nonzero) digits is 41472, while the sum is 40.

The spelling of 40386181090 in words is "forty billion, three hundred eighty-six million, one hundred eighty-one thousand, ninety".