30002421 has 8 divisors (see below), whose sum is σ = 40029184. Its totient is φ = 19988640.

The previous prime is 30002411. The next prime is 30002431. The reversal of 30002421 is 12420003.

It is an interprime number because it is at equal distance from previous prime (30002411) and next prime (30002431).

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

It is not a de Polignac number, because 30002421 - 2¹³ = 29994229 is a prime.

It is a super-2 number, since 2×30002421² = 1800290531722482, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30002397 and 30002406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30002411) 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, 5580 + ... + 9546.

It is an arithmetic number, because the mean of its divisors is an integer number (5003648).

Almost surely, 2^30002421 is an apocalyptic number.

It is an amenable number.

30002421 is a deficient number, since it is larger than the sum of its proper divisors (10026763).

30002421 is a wasteful number, since it uses less digits than its factorization.

30002421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6491.

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

The square root of 30002421 is about 5477.4465766450. The cubic root of 30002421 is about 310.7316088260.

Adding to 30002421 its reverse (12420003), we get a palindrome (42422424).

The spelling of 30002421 in words is "thirty million, two thousand, four hundred twenty-one".