2743400 has 96 divisors (see below), whose sum is σ = 7365600. Its totient is φ = 940800.

The previous prime is 2743397. The next prime is 2743423. The reversal of 2743400 is 43472.

It is a happy number.

2743400 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 63779 + ... + 63821.

It is an arithmetic number, because the mean of its divisors is an integer number (76725).

2^2743400 is an apocalyptic number.

2743400 is a gapful number since it is divisible by the number (20) 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 2743400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3682800).

2743400 is an abundant number, since it is smaller than the sum of its proper divisors (4622200).

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

2743400 is a wasteful number, since it uses less digits than its factorization.

2743400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99 (or 90 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 20.

The square root of 2743400 is about 1656.3212248836. The cubic root of 2743400 is about 139.9897951745.

Adding to 2743400 its reverse (43472), we get a palindrome (2786872).

The spelling of 2743400 in words is "two million, seven hundred forty-three thousand, four hundred".