3002400021 has 16 divisors (see below), whose sum is σ = 4096287936. Its totient is φ = 1955381376.

The previous prime is 3002400017. The next prime is 3002400031. The reversal of 3002400021 is 1200042003.

It is not a de Polignac number, because 3002400021 - 2² = 3002400017 is a prime.

It is a super-2 number, since 2×3002400021² = 18028811772201600882, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3002400001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3475 + ... + 77568.

It is an arithmetic number, because the mean of its divisors is an integer number (256017996).

Almost surely, 2^3002400021 is an apocalyptic number.

It is an amenable number.

3002400021 is a deficient number, since it is larger than the sum of its proper divisors (1093887915).

3002400021 is a wasteful number, since it uses less digits than its factorization.

3002400021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81332.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 3002400021 is about 54794.1604644145. The cubic root of 3002400021 is about 1442.6340710419.

Adding to 3002400021 its reverse (1200042003), we get a palindrome (4202442024).

The spelling of 3002400021 in words is "three billion, two million, four hundred thousand, twenty-one".