30326421 has 16 divisors (see below), whose sum is σ = 42418944. Its totient is φ = 19249344.

The previous prime is 30326389. The next prime is 30326447. The reversal of 30326421 is 12462303.

It is a happy number.

It is not a de Polignac number, because 30326421 - 2⁵ = 30326389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30326221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2311 + ... + 8123.

It is an arithmetic number, because the mean of its divisors is an integer number (2651184).

Almost surely, 2^30326421 is an apocalyptic number.

It is an amenable number.

30326421 is a deficient number, since it is larger than the sum of its proper divisors (12092523).

30326421 is a wasteful number, since it uses less digits than its factorization.

30326421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5900.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 30326421 is about 5506.9429813645. The cubic root of 30326421 is about 311.8461499036.

Adding to 30326421 its reverse (12462303), we get a palindrome (42788724).

It can be divided in two parts, 3032 and 6421, that added together give a triangular number (9453 = T₁₃₇).

The spelling of 30326421 in words is "thirty million, three hundred twenty-six thousand, four hundred twenty-one".