38691750 has 64 divisors (see below), whose sum is σ = 100818432. Its totient is φ = 9864800.

The previous prime is 38691743. The next prime is 38691761. The reversal of 38691750 is 5719683.

38691750 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 38691699 and 38691708.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16129 + ... + 18371.

It is an arithmetic number, because the mean of its divisors is an integer number (1575288).

Almost surely, 2^38691750 is an apocalyptic number.

38691750 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 38691750, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50409216).

38691750 is an abundant number, since it is smaller than the sum of its proper divisors (62126682).

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

38691750 is a wasteful number, since it uses less digits than its factorization.

38691750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2286 (or 2276 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 39.

The square root of 38691750 is about 6220.2692867753. The cubic root of 38691750 is about 338.2253262195.

The spelling of 38691750 in words is "thirty-eight million, six hundred ninety-one thousand, seven hundred fifty".