40146533956 has 9 divisors (see below), whose sum is σ = 70257135711. Its totient is φ = 20073066612.

The previous prime is 40146533953. The next prime is 40146533981. The reversal of 40146533956 is 65933564104.

The square root of 40146533956 is 200366.

It is a perfect power (a square), and thus also a powerful number.

It is a super-2 number, since 2×40146533956² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40146533953) 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 2 ways as a sum of consecutive naturals, for example, 350641 + ... + 450823.

Almost surely, 2^40146533956 is an apocalyptic number.

40146533956 is the 200366-th square number.

It is an amenable number.

40146533956 is a deficient number, since it is larger than the sum of its proper divisors (30110601755).

40146533956 is an frugal number, since it uses more digits than its factorization.

40146533956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200370 (or 100185 counting only the distinct ones).

The product of its (nonzero) digits is 1166400, while the sum is 46.

The spelling of 40146533956 in words is "forty billion, one hundred forty-six million, five hundred thirty-three thousand, nine hundred fifty-six".