306424 has 8 divisors (see below), whose sum is σ = 574560. Its totient is φ = 153208.

The previous prime is 306421. The next prime is 306431. The reversal of 306424 is 424603.

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (19) coincides with the sum of the digits of its distinct prime factors.

It is a nialpdrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (306421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19144 + ... + 19159.

It is an arithmetic number, because the mean of its divisors is an integer number (71820).

2³⁰⁶⁴²⁴ is an apocalyptic number.

It is an amenable number.

306424 is a deficient number, since it is larger than the sum of its proper divisors (268136).

306424 is a wasteful number, since it uses less digits than its factorization.

306424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38309 (or 38305 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 306424 is about 553.5557785806. Note that the first 3 decimals coincide. The cubic root of 306424 is about 67.4177507568.

It can be divided in two parts, 3064 and 24, that multiplied together give a triangular number (73536 = T₃₈₃).

The spelling of 306424 in words is "three hundred six thousand, four hundred twenty-four".