306948630 has 16 divisors (see below), whose sum is σ = 736676784. Its totient is φ = 81852960.

The previous prime is 306948613. The next prime is 306948647. The reversal of 306948630 is 36849603.

It is an interprime number because it is at equal distance from previous prime (306948613) and next prime (306948647).

It is a super-2 number, since 2×306948630² = 188434922917753800, which contains 22 as substring.

It is a Curzon number.

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 7 ways as a sum of consecutive naturals, for example, 5115781 + ... + 5115840.

It is an arithmetic number, because the mean of its divisors is an integer number (46042299).

Almost surely, 2^306948630 is an apocalyptic number.

306948630 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

306948630 is an abundant number, since it is smaller than the sum of its proper divisors (429728154).

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

306948630 is a wasteful number, since it uses less digits than its factorization.

306948630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10231631.

The product of its (nonzero) digits is 93312, while the sum is 39.

The square root of 306948630 is about 17519.9494862285. The cubic root of 306948630 is about 674.5620423777.

The spelling of 306948630 in words is "three hundred six million, nine hundred forty-eight thousand, six hundred thirty".