40186613432 has 24 divisors (see below), whose sum is σ = 87651925560. Its totient is φ = 17222834160.

The previous prime is 40186613431. The next prime is 40186613471. The reversal of 40186613432 is 23431668104.

It is a happy number.

It is a super-2 number, since 2×40186613432² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40186613431) 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 5 ways as a sum of consecutive naturals, for example, 51258044 + ... + 51258827.

It is an arithmetic number, because the mean of its divisors is an integer number (3652163565).

Almost surely, 2^40186613432 is an apocalyptic number.

It is an amenable number.

40186613432 is an abundant number, since it is smaller than the sum of its proper divisors (47465312128).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40186613432 is a wasteful number, since it uses less digits than its factorization.

40186613432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102516891 (or 102516880 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 38.

The spelling of 40186613432 in words is "forty billion, one hundred eighty-six million, six hundred thirteen thousand, four hundred thirty-two".