3404020240 has 80 divisors (see below), whose sum is σ = 8693193600. Its totient is φ = 1233847296.

The previous prime is 3404020229. The next prime is 3404020247. The reversal of 3404020240 is 420204043.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (19).

It is not an unprimeable number, because it can be changed into a prime (3404020247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13725 + ... + 83644.

It is an arithmetic number, because the mean of its divisors is an integer number (108664920).

Almost surely, 2^3404020240 is an apocalyptic number.

It is an amenable number.

3404020240 is an abundant number, since it is smaller than the sum of its proper divisors (5289173360).

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

3404020240 is a wasteful number, since it uses less digits than its factorization.

3404020240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97424 (or 97418 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 3404020240 is about 58343.9820375675. The cubic root of 3404020240 is about 1504.2870307207.

Adding to 3404020240 its reverse (420204043), we get a palindrome (3824224283).

The spelling of 3404020240 in words is "three billion, four hundred four million, twenty thousand, two hundred forty".