38697750 has 288 divisors, whose sum is σ = 135940896. Its totient is φ = 8164800.

The previous prime is 38697719. The next prime is 38697751. The reversal of 38697750 is 5779683.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 38697696 and 38697705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38697751) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 2976744 + ... + 2976756.

It is an arithmetic number, because the mean of its divisors is an integer number (472017).

Almost surely, 2^38697750 is an apocalyptic number.

38697750 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 38697750, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67970448).

38697750 is an abundant number, since it is smaller than the sum of its proper divisors (97243146).

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

38697750 is a wasteful number, since it uses less digits than its factorization.

38697750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59 (or 30 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 45.

The square root of 38697750 is about 6220.7515623114. The cubic root of 38697750 is about 338.2428083879.

The spelling of 38697750 in words is "thirty-eight million, six hundred ninety-seven thousand, seven hundred fifty".