306362772 has 36 divisors (see below), whose sum is σ = 778712116. Its totient is φ = 101554560.

The previous prime is 306362747. The next prime is 306362773. The reversal of 306362772 is 277263603.

It can be written as a sum of positive squares in 2 ways, for example, as 142420356 + 163942416 = 11934^2 + 12804^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (306362773) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16993 + ... + 30024.

Almost surely, 2^306362772 is an apocalyptic number.

It is an amenable number.

306362772 is an abundant number, since it is smaller than the sum of its proper divisors (472349344).

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

306362772 is a wasteful number, since it uses less digits than its factorization.

306362772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47208 (or 47203 counting only the distinct ones).

The product of its (nonzero) digits is 63504, while the sum is 36.

The square root of 306362772 is about 17503.2217605788. The cubic root of 306362772 is about 674.1326010654.

The spelling of 306362772 in words is "three hundred six million, three hundred sixty-two thousand, seven hundred seventy-two".