2748438 has 64 divisors (see below), whose sum is σ = 7626240. Its totient is φ = 712800.

The previous prime is 2748433. The next prime is 2748439. The reversal of 2748438 is 8348472.

It is a super-2 number, since 2×2748438² = 15107822879688, which contains 22 as substring.

It is a d-powerful number, because it can be written as 2¹⁹ + 7⁴ + 4 + 8 + 4⁸ + 3¹⁰ + 8⁷ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2748433) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3828 + ... + 4488.

It is an arithmetic number, because the mean of its divisors is an integer number (119160).

2^2748438 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2748438, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3813120).

2748438 is an abundant number, since it is smaller than the sum of its proper divisors (4877802).

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

2748438 is a wasteful number, since it uses less digits than its factorization.

2748438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 690 (or 684 counting only the distinct ones).

The product of its digits is 43008, while the sum is 36.

The square root of 2748438 is about 1657.8413675620. The cubic root of 2748438 is about 140.0754355366.

The spelling of 2748438 in words is "two million, seven hundred forty-eight thousand, four hundred thirty-eight".