3402420321 has 8 divisors (see below), whose sum is σ = 4580605120. Its totient is φ = 2246257872.

The previous prime is 3402420317. The next prime is 3402420367. The reversal of 3402420321 is 1230242043.

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

It is not a de Polignac number, because 3402420321 - 2² = 3402420317 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3402420311) 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, 5505226 + ... + 5505843.

It is an arithmetic number, because the mean of its divisors is an integer number (572575640).

Almost surely, 2^3402420321 is an apocalyptic number.

It is an amenable number.

3402420321 is a deficient number, since it is larger than the sum of its proper divisors (1178184799).

3402420321 is a wasteful number, since it uses less digits than its factorization.

3402420321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11011175.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 3402420321 is about 58330.2693376261. The cubic root of 3402420321 is about 1504.0513178093.

Adding to 3402420321 its reverse (1230242043), we get a palindrome (4632662364).

It can be divided in two parts, 34024 and 20321, that added together give a palindrome (54345).

The spelling of 3402420321 in words is "three billion, four hundred two million, four hundred twenty thousand, three hundred twenty-one".