3938000 has 80 divisors (see below), whose sum is σ = 10445760. Its totient is φ = 1424000.

The previous prime is 3937993. The next prime is 3938029. The reversal of 3938000 is 8393.

It is a tau number, because it is divible by the number of its divisors (80).

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, 21911 + ... + 22089.

It is an arithmetic number, because the mean of its divisors is an integer number (130572).

Almost surely, 2^3938000 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 3938000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5222880).

3938000 is an abundant number, since it is smaller than the sum of its proper divisors (6507760).

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

3938000 is a wasteful number, since it uses less digits than its factorization.

3938000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213 (or 197 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 3938000 is about 1984.4394674567. The cubic root of 3938000 is about 157.9156736369.

The spelling of 3938000 in words is "three million, nine hundred thirty-eight thousand".