3138400 has 36 divisors (see below), whose sum is σ = 7663572. Its totient is φ = 1255040.

The previous prime is 3138397. The next prime is 3138403. The reversal of 3138400 is 48313.

It is an interprime number because it is at equal distance from previous prime (3138397) and next prime (3138403).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3138403) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1162 + ... + 2761.

It is an arithmetic number, because the mean of its divisors is an integer number (212877).

Almost surely, 2^3138400 is an apocalyptic number.

It is an amenable number.

3138400 is an abundant number, since it is smaller than the sum of its proper divisors (4525172).

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

3138400 is a wasteful number, since it uses less digits than its factorization.

3138400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3943 (or 3930 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 3138400 is about 1771.5529910223. The cubic root of 3138400 is about 146.4095587337.

The spelling of 3138400 in words is "three million, one hundred thirty-eight thousand, four hundred".