40263235660 has 24 divisors (see below), whose sum is σ = 85301054496. Its totient is φ = 15962768640.

The previous prime is 40263235637. The next prime is 40263235667. The reversal of 40263235660 is 6653236204.

It is a super-2 number, since 2×40263235660² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40263235667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8905536 + ... + 8910055.

It is an arithmetic number, because the mean of its divisors is an integer number (3554210604).

Almost surely, 2^40263235660 is an apocalyptic number.

It is an amenable number.

40263235660 is an abundant number, since it is smaller than the sum of its proper divisors (45037818836).

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

40263235660 is a wasteful number, since it uses less digits than its factorization.

40263235660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17815713 (or 17815711 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 37.

The spelling of 40263235660 in words is "forty billion, two hundred sixty-three million, two hundred thirty-five thousand, six hundred sixty".