306670240 has 24 divisors (see below), whose sum is σ = 724508820. Its totient is φ = 122668032.

The previous prime is 306670219. The next prime is 306670261. The reversal of 306670240 is 42076603.

It is an interprime number because it is at equal distance from previous prime (306670219) and next prime (306670261).

It can be written as a sum of positive squares in 2 ways, for example, as 297355536 + 9314704 = 17244^2 + 3052^2 .

It is a super-2 number, since 2×306670240² = 188093272203315200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 306670199 and 306670208.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 958185 + ... + 958504.

Almost surely, 2^306670240 is an apocalyptic number.

It is an amenable number.

306670240 is an abundant number, since it is smaller than the sum of its proper divisors (417838580).

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

306670240 is a wasteful number, since it uses less digits than its factorization.

306670240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1916704 (or 1916696 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 28.

The square root of 306670240 is about 17512.0027409774. The cubic root of 306670240 is about 674.3580471917.

The spelling of 306670240 in words is "three hundred six million, six hundred seventy thousand, two hundred forty".