38857500 has 180 divisors, whose sum is σ = 134750616. Its totient is φ = 9360000.

The previous prime is 38857487. The next prime is 38857501. The reversal of 38857500 is 575883.

It is a happy number.

38857500 is a `hidden beast` number, since 3 + 88 + 575 + 0 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (180).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38857501) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 247422 + ... + 247578.

Almost surely, 2^38857500 is an apocalyptic number.

38857500 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38857500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67375308).

38857500 is an abundant number, since it is smaller than the sum of its proper divisors (95893116).

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

38857500 is a wasteful number, since it uses less digits than its factorization.

38857500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198 (or 178 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 36.

The square root of 38857500 is about 6233.5784265540. The cubic root of 38857500 is about 338.7076080628.

The spelling of 38857500 in words is "thirty-eight million, eight hundred fifty-seven thousand, five hundred".