3040215 has 24 divisors (see below), whose sum is σ = 5058768. Its totient is φ = 1559040.

The previous prime is 3040189. The next prime is 3040217. The reversal of 3040215 is 5120403.

It is not a de Polignac number, because 3040215 - 2⁷ = 3040087 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

3040215 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 3040194 and 3040203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3040217) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12495 + ... + 12735.

It is an arithmetic number, because the mean of its divisors is an integer number (210782).

Almost surely, 2^3040215 is an apocalyptic number.

3040215 is a deficient number, since it is larger than the sum of its proper divisors (2018553).

3040215 is a wasteful number, since it uses less digits than its factorization.

3040215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307 (or 278 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 3040215 is about 1743.6212318047. The cubic root of 3040215 is about 144.8665438731.

Adding to 3040215 its reverse (5120403), we get a palindrome (8160618).

The spelling of 3040215 in words is "three million, forty thousand, two hundred fifteen".