308436 has 12 divisors (see below), whose sum is σ = 719712. Its totient is φ = 102808.

The previous prime is 308423. The next prime is 308437. The reversal of 308436 is 634803.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 308436.

It is not an unprimeable number, because it can be changed into a prime (308437) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12840 + ... + 12863.

It is an arithmetic number, because the mean of its divisors is an integer number (59976).

2³⁰⁸⁴³⁶ is an apocalyptic number.

It is an amenable number.

308436 is an abundant number, since it is smaller than the sum of its proper divisors (411276).

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

308436 is a wasteful number, since it uses less digits than its factorization.

308436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25710 (or 25708 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 308436 is about 555.3701468390. The cubic root of 308436 is about 67.5649854264.

The spelling of 308436 in words is "three hundred eight thousand, four hundred thirty-six".