306126012 has 48 divisors (see below), whose sum is σ = 736168832. Its totient is φ = 98936640.

The previous prime is 306125969. The next prime is 306126019. The reversal of 306126012 is 210621603.

It is a happy number.

It is a super-3 number, since 3×306126012³ (a number of 26 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 306126012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (306126019) 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, 145923 + ... + 148005.

Almost surely, 2^306126012 is an apocalyptic number.

It is an amenable number.

306126012 is an abundant number, since it is smaller than the sum of its proper divisors (430042820).

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

306126012 is a wasteful number, since it uses less digits than its factorization.

306126012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2458 (or 2456 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 306126012 is about 17496.4571270872. The cubic root of 306126012 is about 673.9588976629.

Adding to 306126012 its reverse (210621603), we get a palindrome (516747615).

The spelling of 306126012 in words is "three hundred six million, one hundred twenty-six thousand, twelve".