306444 has 12 divisors (see below), whose sum is σ = 715064. Its totient is φ = 102144.

The previous prime is 306437. The next prime is 306457. The reversal of 306444 is 444603.

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

It is a self number, because there is not a number n which added to its sum of digits gives 306444.

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, 12757 + ... + 12780.

2³⁰⁶⁴⁴⁴ is an apocalyptic number.

It is an amenable number.

306444 is an abundant number, since it is smaller than the sum of its proper divisors (408620).

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

306444 is a wasteful number, since it uses less digits than its factorization.

306444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25544 (or 25542 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 306444 is about 553.5738433127. The cubic root of 306444 is about 67.4192174888.

The spelling of 306444 in words is "three hundred six thousand, four hundred forty-four".