3149748 has 72 divisors (see below), whose sum is σ = 9434880. Its totient is φ = 866880.

The previous prime is 3149747. The next prime is 3149749. The reversal of 3149748 is 8479413.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (3149747) and next prime (3149749).

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

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 (3149747) 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, 7093 + ... + 7523.

It is an arithmetic number, because the mean of its divisors is an integer number (131040).

Almost surely, 2^3149748 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 3149748, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4717440).

3149748 is an abundant number, since it is smaller than the sum of its proper divisors (6285132).

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

3149748 is a wasteful number, since it uses less digits than its factorization.

3149748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 477 (or 472 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 3149748 is about 1774.7529405526. The cubic root of 3149748 is about 146.5858117244.

Adding to 3149748 its product of digits (24192), we get a triangular number (3173940 = T₂₅₁₉).

The spelling of 3149748 in words is "three million, one hundred forty-nine thousand, seven hundred forty-eight".