3340240421 has 8 divisors (see below), whose sum is σ = 3940560384. Its totient is φ = 2770706160.

The previous prime is 3340240403. The next prime is 3340240433. The reversal of 3340240421 is 1240420433.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3340240421 - 2¹⁸ = 3339978277 is a prime.

It is a super-2 number, since 2×3340240421² = 22314412140164514482, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3340240621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7696190 + ... + 7696623.

It is an arithmetic number, because the mean of its divisors is an integer number (492570048).

Almost surely, 2^3340240421 is an apocalyptic number.

3340240421 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

3340240421 is a deficient number, since it is larger than the sum of its proper divisors (600319963).

3340240421 is a wasteful number, since it uses less digits than its factorization.

3340240421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15392851.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 3340240421 is about 57794.8130977166. The cubic root of 3340240421 is about 1494.8326521927.

Adding to 3340240421 its reverse (1240420433), we get a palindrome (4580660854).

The spelling of 3340240421 in words is "three billion, three hundred forty million, two hundred forty thousand, four hundred twenty-one".