3440425521 has 32 divisors (see below), whose sum is σ = 5052579840. Its totient is φ = 2069112384.

The previous prime is 3440425511. The next prime is 3440425543. The reversal of 3440425521 is 1255240443.

It is not a de Polignac number, because 3440425521 - 2⁵ = 3440425489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3440425511) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2417016 + ... + 2418438.

It is an arithmetic number, because the mean of its divisors is an integer number (157893120).

Almost surely, 2^3440425521 is an apocalyptic number.

It is an amenable number.

3440425521 is a deficient number, since it is larger than the sum of its proper divisors (1612154319).

3440425521 is a wasteful number, since it uses less digits than its factorization.

3440425521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2805.

The product of its (nonzero) digits is 19200, while the sum is 30.

The square root of 3440425521 is about 58655.1406187045. The cubic root of 3440425521 is about 1509.6307038069.

Adding to 3440425521 its reverse (1255240443), we get a palindrome (4695665964).

The spelling of 3440425521 in words is "three billion, four hundred forty million, four hundred twenty-five thousand, five hundred twenty-one".