2943738 has 48 divisors (see below), whose sum is σ = 7428096. Its totient is φ = 825120.

The previous prime is 2943713. The next prime is 2943739. The reversal of 2943738 is 8373492.

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 d-powerful number, because it can be written as 2²¹ + 9 + 4⁷ + 3⁴ + 7⁷ + 3⁸ + 8 .

It is not an unprimeable number, because it can be changed into a prime (2943739) 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, 7495 + ... + 7877.

It is an arithmetic number, because the mean of its divisors is an integer number (154752).

2^2943738 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2943738, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3714048).

2943738 is an abundant number, since it is smaller than the sum of its proper divisors (4484358).

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

2943738 is a wasteful number, since it uses less digits than its factorization.

2943738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 459 (or 456 counting only the distinct ones).

The product of its digits is 36288, while the sum is 36.

The square root of 2943738 is about 1715.7324966323. The cubic root of 2943738 is about 143.3176630907.

The spelling of 2943738 in words is "two million, nine hundred forty-three thousand, seven hundred thirty-eight".