40243646192 has 20 divisors (see below), whose sum is σ = 78098048280. Its totient is φ = 20089311168.

The previous prime is 40243646171. The next prime is 40243646203. The reversal of 40243646192 is 29164634204.

It is a happy number.

It is a super-2 number, since 2×40243646192² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2021783 + ... + 2041590.

It is an arithmetic number, because the mean of its divisors is an integer number (3904902414).

Almost surely, 2^40243646192 is an apocalyptic number.

It is an amenable number.

40243646192 is a deficient number, since it is larger than the sum of its proper divisors (37854402088).

40243646192 is a wasteful number, since it uses less digits than its factorization.

40243646192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4064000 (or 4063994 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 41.

The spelling of 40243646192 in words is "forty billion, two hundred forty-three million, six hundred forty-six thousand, one hundred ninety-two".