306487420 has 24 divisors (see below), whose sum is σ = 671608224. Its totient is φ = 117264576.

The previous prime is 306487387. The next prime is 306487439. The reversal of 306487420 is 24784603.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 332679 + ... + 333598.

It is an arithmetic number, because the mean of its divisors is an integer number (27983676).

Almost surely, 2^306487420 is an apocalyptic number.

It is an amenable number.

306487420 is an abundant number, since it is smaller than the sum of its proper divisors (365120804).

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

306487420 is a wasteful number, since it uses less digits than its factorization.

306487420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 666309 (or 666307 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 34.

The square root of 306487420 is about 17506.7821143693. The cubic root of 306487420 is about 674.2240154435.

The spelling of 306487420 in words is "three hundred six million, four hundred eighty-seven thousand, four hundred twenty".