38997288 has 80 divisors (see below), whose sum is σ = 119180160. Its totient is φ = 11815200.

The previous prime is 38997229. The next prime is 38997293. The reversal of 38997288 is 88279983.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 4393 + ... + 9863.

It is an arithmetic number, because the mean of its divisors is an integer number (1489752).

Almost surely, 2^38997288 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 38997288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59590080).

38997288 is an abundant number, since it is smaller than the sum of its proper divisors (80182872).

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

38997288 is a wasteful number, since it uses less digits than its factorization.

38997288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5500 (or 5487 counting only the distinct ones).

The product of its digits is 1741824, while the sum is 54.

The square root of 38997288 is about 6244.7808608469. The cubic root of 38997288 is about 339.1132834650.

The spelling of 38997288 in words is "thirty-eight million, nine hundred ninety-seven thousand, two hundred eighty-eight".