306740196 has 135 divisors (see below), whose sum is σ = 939557619. Its totient is φ = 87009552.

The previous prime is 306740177. The next prime is 306740201. The reversal of 306740196 is 691047603.

The square root of 306740196 is 17514.

It is a perfect power (a square), and thus also a powerful number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 306740196.

It is an unprimeable number.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 2206695 + ... + 2206833.

Almost surely, 2^306740196 is an apocalyptic number.

306740196 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

306740196 is the 17514-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 306740196

306740196 is an abundant number, since it is smaller than the sum of its proper divisors (632817423).

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

306740196 is a wasteful number, since it uses less digits than its factorization.

306740196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308 (or 151 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The cubic root of 306740196 is about 674.4093202952.

Multiplying 306740196 by its sum of digits (36), we get a square (11042647056 = 105084²).

306740196 divided by its sum of digits (36) gives a square (8520561 = 2919²).

Adding to 306740196 its reverse (691047603), we get a palindrome (997787799).

It can be divided in two parts, 306740 and 196, that added together give a triangular number (306936 = T₇₈₃).

The spelling of 306740196 in words is "three hundred six million, seven hundred forty thousand, one hundred ninety-six".