38287900 has 72 divisors (see below), whose sum is σ = 96243840. Its totient is φ = 12949440.

The previous prime is 38287897. The next prime is 38287901. The reversal of 38287900 is 978283.

It is a self number, because there is not a number n which added to its sum of digits gives 38287900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38287901) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 57771 + ... + 58429.

It is an arithmetic number, because the mean of its divisors is an integer number (1336720).

Almost surely, 2^38287900 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38287900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48121920).

38287900 is an abundant number, since it is smaller than the sum of its proper divisors (57955940).

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

38287900 is a wasteful number, since it uses less digits than its factorization.

38287900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 763 (or 756 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 38287900 is about 6187.7217131995. The cubic root of 38287900 is about 337.0444516908.

The spelling of 38287900 in words is "thirty-eight million, two hundred eighty-seven thousand, nine hundred".