38102720 has 112 divisors (see below), whose sum is σ = 98316288. Its totient is φ = 14023680.

The previous prime is 38102683. The next prime is 38102737. The reversal of 38102720 is 2720183.

It is a Harshad number since it is a multiple of its sum of digits (23).

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, 228077 + ... + 228243.

It is an arithmetic number, because the mean of its divisors is an integer number (877824).

Almost surely, 2^38102720 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 38102720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49158144).

38102720 is an abundant number, since it is smaller than the sum of its proper divisors (60213568).

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

38102720 is a wasteful number, since it uses less digits than its factorization.

38102720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238 (or 228 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 38102720 is about 6172.7400722856. The cubic root of 38102720 is about 336.5001998104.

The spelling of 38102720 in words is "thirty-eight million, one hundred two thousand, seven hundred twenty".