3072240 has 120 divisors (see below), whose sum is σ = 10968048. Its totient is φ = 768000.

The previous prime is 3072239. The next prime is 3072263. The reversal of 3072240 is 422703.

It is a happy number.

3072240 is digitally balanced in base 2 and base 5, because in such bases it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (120).

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

It is an Ulam number.

It is a congruent number.

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, 12115 + ... + 12365.

Almost surely, 2^3072240 is an apocalyptic number.

3072240 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 3072240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5484024).

3072240 is an abundant number, since it is smaller than the sum of its proper divisors (7895808).

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

3072240 is a wasteful number, since it uses less digits than its factorization.

3072240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287 (or 278 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 18.

The square root of 3072240 is about 1752.7806479991. The cubic root of 3072240 is about 145.3734329959.

Adding to 3072240 its reverse (422703), we get a palindrome (3494943).

The spelling of 3072240 in words is "three million, seventy-two thousand, two hundred forty".