38987100240 has 120 divisors (see below), whose sum is σ = 132846226464. Its totient is φ = 9451411200.

The previous prime is 38987100233. The next prime is 38987100241. The reversal of 38987100240 is 4200178983.

It is a tau number, because it is divible by the number of its divisors (120).

It is a junction number, because it is equal to n+sod(n) for n = 38987100192 and 38987100201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38987100241) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 642226 + ... + 700305.

Almost surely, 2^38987100240 is an apocalyptic number.

38987100240 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

38987100240 is an abundant number, since it is smaller than the sum of its proper divisors (93859126224).

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

38987100240 is a wasteful number, since it uses less digits than its factorization.

38987100240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1342569 (or 1342552 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 42.

The spelling of 38987100240 in words is "thirty-eight billion, nine hundred eighty-seven million, one hundred thousand, two hundred forty".