30421012 has 12 divisors (see below), whose sum is σ = 53545716. Its totient is φ = 15122240.

The previous prime is 30421009. The next prime is 30421021. The reversal of 30421012 is 21012403.

It can be written as a sum of positive squares in 2 ways, for example, as 26563716 + 3857296 = 5154^2 + 1964^2 .

It is a super-2 number, since 2×30421012² = 1850875942208288, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30420983 and 30421001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21289 + ... + 22672.

It is an arithmetic number, because the mean of its divisors is an integer number (4462143).

Almost surely, 2^30421012 is an apocalyptic number.

It is an amenable number.

30421012 is a deficient number, since it is larger than the sum of its proper divisors (23124704).

30421012 is a wasteful number, since it uses less digits than its factorization.

30421012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44138 (or 44136 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 30421012 is about 5515.5246350642. The cubic root of 30421012 is about 312.1700393524.

Adding to 30421012 its reverse (21012403), we get a palindrome (51433415).

It can be divided in two parts, 304 and 21012, that added together give a square (21316 = 146²).

The spelling of 30421012 in words is "thirty million, four hundred twenty-one thousand, twelve".