30609012 has 24 divisors (see below), whose sum is σ = 81624256. Its totient is φ = 8745408.

The previous prime is 30609011. The next prime is 30609013. The reversal of 30609012 is 21090603.

It is an interprime number because it is at equal distance from previous prime (30609011) and next prime (30609013).

It is a super-2 number, since 2×30609012² = 1873823231232288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 30609012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30609011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 182113 + ... + 182280.

Almost surely, 2^30609012 is an apocalyptic number.

It is an amenable number.

30609012 is an abundant number, since it is smaller than the sum of its proper divisors (51015244).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30609012 is a wasteful number, since it uses less digits than its factorization.

30609012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364407 (or 364405 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 30609012 is about 5532.5411882787. The cubic root of 30609012 is about 312.8117831220.

Adding to 30609012 its reverse (21090603), we get a palindrome (51699615).

The spelling of 30609012 in words is "thirty million, six hundred nine thousand, twelve".