3749436 has 48 divisors (see below), whose sum is σ = 9828000. Its totient is φ = 1236096.

The previous prime is 3749407. The next prime is 3749443. The reversal of 3749436 is 6349473.

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

It is a self number, because there is not a number n which added to its sum of digits gives 3749436.

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, 15976 + ... + 16208.

It is an arithmetic number, because the mean of its divisors is an integer number (204750).

Almost surely, 2^3749436 is an apocalyptic number.

3749436 is a gapful number since it is divisible by the number (36) 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 3749436, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4914000).

3749436 is an abundant number, since it is smaller than the sum of its proper divisors (6078564).

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

3749436 is a wasteful number, since it uses less digits than its factorization.

3749436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395 (or 387 counting only the distinct ones).

The product of its digits is 54432, while the sum is 36.

The square root of 3749436 is about 1936.3460434540. The cubic root of 3749436 is about 155.3538361110.

The spelling of 3749436 in words is "three million, seven hundred forty-nine thousand, four hundred thirty-six".