3149388 has 72 divisors (see below), whose sum is σ = 9012080. Its totient is φ = 950400.

The previous prime is 3149387. The next prime is 3149441. The reversal of 3149388 is 8839413.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3149381) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12948 + ... + 13188.

Almost surely, 2^3149388 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 3149388, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4506040).

3149388 is an abundant number, since it is smaller than the sum of its proper divisors (5862692).

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

3149388 is a wasteful number, since it uses less digits than its factorization.

3149388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276 (or 257 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 3149388 is about 1774.6515150868. The cubic root of 3149388 is about 146.5802268434.

The spelling of 3149388 in words is "three million, one hundred forty-nine thousand, three hundred eighty-eight".