38297988 has 48 divisors (see below), whose sum is σ = 100302720. Its totient is φ = 12636000.

The previous prime is 38297969. The next prime is 38298011. The reversal of 38297988 is 88979283.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9153 + ... + 12663.

It is an arithmetic number, because the mean of its divisors is an integer number (2089640).

Almost surely, 2^38297988 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 38297988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50151360).

38297988 is an abundant number, since it is smaller than the sum of its proper divisors (62004732).

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

38297988 is a wasteful number, since it uses less digits than its factorization.

38297988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3625 (or 3617 counting only the distinct ones).

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

The square root of 38297988 is about 6188.5368222222. The cubic root of 38297988 is about 337.0740503008.

The spelling of 38297988 in words is "thirty-eight million, two hundred ninety-seven thousand, nine hundred eighty-eight".