3023440 has 40 divisors (see below), whose sum is σ = 8035200. Its totient is φ = 1036416.

The previous prime is 3023437. The next prime is 3023443. The reversal of 3023440 is 443203.

It is an interprime number because it is at equal distance from previous prime (3023437) and next prime (3023443).

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3023443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2140 + ... + 3259.

It is an arithmetic number, because the mean of its divisors is an integer number (200880).

Almost surely, 2^3023440 is an apocalyptic number.

It is an amenable number.

3023440 is an abundant number, since it is smaller than the sum of its proper divisors (5011760).

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

3023440 is a wasteful number, since it uses less digits than its factorization.

3023440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5419 (or 5413 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 16.

The square root of 3023440 is about 1738.8041867905. The cubic root of 3023440 is about 144.5996088466.

Adding to 3023440 its reverse (443203), we get a palindrome (3466643).

The spelling of 3023440 in words is "three million, twenty-three thousand, four hundred forty".