40730365808 has 40 divisors (see below), whose sum is σ = 88866264576. Its totient is φ = 17916580800.

The previous prime is 40730365783. The next prime is 40730365811. The reversal of 40730365808 is 80856303704.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 3727166 + ... + 3738077.

Almost surely, 2^40730365808 is an apocalyptic number.

It is an amenable number.

40730365808 is an abundant number, since it is smaller than the sum of its proper divisors (48135898768).

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

40730365808 is a wasteful number, since it uses less digits than its factorization.

40730365808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7465293 (or 7465287 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 44.

The spelling of 40730365808 in words is "forty billion, seven hundred thirty million, three hundred sixty-five thousand, eight hundred eight".