3800640 has 112 divisors (see below), whose sum is σ = 12508992. Its totient is φ = 976896.

The previous prime is 3800633. The next prime is 3800647. The reversal of 3800640 is 460083.

It is an interprime number because it is at equal distance from previous prime (3800633) and next prime (3800647).

It is not an unprimeable number, because it can be changed into a prime (3800647) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35467 + ... + 35573.

Almost surely, 2^3800640 is an apocalyptic number.

3800640 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3800640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6254496).

3800640 is an abundant number, since it is smaller than the sum of its proper divisors (8708352).

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

3800640 is a wasteful number, since it uses less digits than its factorization.

3800640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164 (or 154 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 3800640 is about 1949.5230185869. The cubic root of 3800640 is about 156.0578352288.

The spelling of 3800640 in words is "three million, eight hundred thousand, six hundred forty".