40490006328 has 32 divisors (see below), whose sum is σ = 112472240400. Its totient is φ = 13496668704.

The previous prime is 40490006273. The next prime is 40490006329. The reversal of 40490006328 is 82360009404.

It is a happy number.

It is a super-2 number, since 2×40490006328² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 40490006292 and 40490006301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40490006329) 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 7 ways as a sum of consecutive naturals, for example, 93726651 + ... + 93727082.

Almost surely, 2^40490006328 is an apocalyptic number.

It is an amenable number.

40490006328 is an abundant number, since it is smaller than the sum of its proper divisors (71982234072).

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

40490006328 is a wasteful number, since it uses less digits than its factorization.

40490006328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187453748 (or 187453738 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The spelling of 40490006328 in words is "forty billion, four hundred ninety million, six thousand, three hundred twenty-eight".