38521374040 has 16 divisors (see below), whose sum is σ = 86673091680. Its totient is φ = 15408549600.

The previous prime is 38521374037. The next prime is 38521374083. The reversal of 38521374040 is 4047312583.

It is a happy number.

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, 481517136 + ... + 481517215.

It is an arithmetic number, because the mean of its divisors is an integer number (5417068230).

Almost surely, 2^38521374040 is an apocalyptic number.

It is an amenable number.

38521374040 is an abundant number, since it is smaller than the sum of its proper divisors (48151717640).

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

38521374040 is a wasteful number, since it uses less digits than its factorization.

38521374040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 963034362 (or 963034358 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 37.

The spelling of 38521374040 in words is "thirty-eight billion, five hundred twenty-one million, three hundred seventy-four thousand, forty".