3023640 has 96 divisors (see below), whose sum is σ = 10136880. Its totient is φ = 781056.

The previous prime is 3023633. The next prime is 3023653. The reversal of 3023640 is 463203.

3023640 is a `hidden beast` number, since 3 + 0 + 23 + 640 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13207 + ... + 13433.

Almost surely, 2^3023640 is an apocalyptic number.

3023640 is a gapful number since it is divisible by the number (30) 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 3023640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5068440).

3023640 is an abundant number, since it is smaller than the sum of its proper divisors (7113240).

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

3023640 is a wasteful number, since it uses less digits than its factorization.

3023640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281 (or 274 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 3023640 is about 1738.8616966280. The cubic root of 3023640 is about 144.6027971888.

Adding to 3023640 its reverse (463203), we get a palindrome (3486843).

It can be divided in two parts, 30236 and 40, that added together give a square (30276 = 174²).

The spelling of 3023640 in words is "three million, twenty-three thousand, six hundred forty".