38390704 has 40 divisors (see below), whose sum is σ = 81512640. Its totient is φ = 17371200.

The previous prime is 38390699. The next prime is 38390707. The reversal of 38390704 is 40709383.

It is a pancake number, because a pancake can be divided into 38390704 parts by 8762 straight cuts.

It is a self number, because there is not a number n which added to its sum of digits gives 38390704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38390707) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57927 + ... + 58585.

It is an arithmetic number, because the mean of its divisors is an integer number (2037816).

Almost surely, 2^38390704 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 38390704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40756320).

38390704 is an abundant number, since it is smaller than the sum of its proper divisors (43121936).

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

38390704 is a wasteful number, since it uses less digits than its factorization.

38390704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1009 (or 1003 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 38390704 is about 6196.0232407569. The cubic root of 38390704 is about 337.3458397914.

The spelling of 38390704 in words is "thirty-eight million, three hundred ninety thousand, seven hundred four".