2943480 has 64 divisors (see below), whose sum is σ = 9302400. Its totient is φ = 743040.

The previous prime is 2943467. The next prime is 2943491. The reversal of 2943480 is 843492.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1635 + ... + 2925.

It is an arithmetic number, because the mean of its divisors is an integer number (145350).

2^2943480 is an apocalyptic number.

2943480 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 2943480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4651200).

2943480 is an abundant number, since it is smaller than the sum of its proper divisors (6358920).

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

2943480 is a wasteful number, since it uses less digits than its factorization.

2943480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1324 (or 1320 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 2943480 is about 1715.6573084390. The cubic root of 2943480 is about 143.3134760064.

The spelling of 2943480 in words is "two million, nine hundred forty-three thousand, four hundred eighty".