40428243356 has 12 divisors (see below), whose sum is σ = 72475021920. Its totient is φ = 19721094240.

The previous prime is 40428243347. The next prime is 40428243403. The reversal of 40428243356 is 65334282404.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 123256676 + ... + 123257003.

It is an arithmetic number, because the mean of its divisors is an integer number (6039585160).

Almost surely, 2^40428243356 is an apocalyptic number.

It is an amenable number.

40428243356 is a deficient number, since it is larger than the sum of its proper divisors (32046778564).

40428243356 is a wasteful number, since it uses less digits than its factorization.

40428243356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246513724 (or 246513722 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 41.

The spelling of 40428243356 in words is "forty billion, four hundred twenty-eight million, two hundred forty-three thousand, three hundred fifty-six".