30690012 has 12 divisors (see below), whose sum is σ = 71610056. Its totient is φ = 10230000.

The previous prime is 30690007. The next prime is 30690029. The reversal of 30690012 is 21009603.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1278739 + ... + 1278762.

Almost surely, 2^30690012 is an apocalyptic number.

It is an amenable number.

30690012 is an abundant number, since it is smaller than the sum of its proper divisors (40920044).

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

30690012 is a wasteful number, since it uses less digits than its factorization.

30690012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2557508 (or 2557506 counting only the distinct ones).

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

The square root of 30690012 is about 5539.8566768464. The cubic root of 30690012 is about 313.0874692170.

Adding to 30690012 its reverse (21009603), we get a palindrome (51699615).

It can be divided in two parts, 3069001 and 2, that added together give a triangular number (3069003 = T₂₄₇₇).

The spelling of 30690012 in words is "thirty million, six hundred ninety thousand, twelve".