3402004021 has 8 divisors (see below), whose sum is σ = 3664259424. Its totient is φ = 3139829040.

The previous prime is 3402004019. The next prime is 3402004027. The reversal of 3402004021 is 1204002043.

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 3402004021 - 2¹ = 3402004019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3402003986 and 3402004004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3402004027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90210 + ... + 122236.

It is an arithmetic number, because the mean of its divisors is an integer number (458032428).

Almost surely, 2^3402004021 is an apocalyptic number.

It is an amenable number.

3402004021 is a deficient number, since it is larger than the sum of its proper divisors (262255403).

3402004021 is a wasteful number, since it uses less digits than its factorization.

3402004021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40211.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 3402004021 is about 58326.7007553145. The cubic root of 3402004021 is about 1503.9899730368.

Adding to 3402004021 its reverse (1204002043), we get a palindrome (4606006064).

The spelling of 3402004021 in words is "three billion, four hundred two million, four thousand, twenty-one".