308444 has 12 divisors (see below), whose sum is σ = 558600. Its totient is φ = 148848.

The previous prime is 308437. The next prime is 308447. The reversal of 308444 is 444803.

It is a super-2 number, since 2×308444² = 190275402272, which contains 22 as substring.

308444 is a modest number, since divided by 444 gives 308 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (308447) by changing a digit.

308444 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1214 + ... + 1445.

It is an arithmetic number, because the mean of its divisors is an integer number (46550).

2³⁰⁸⁴⁴⁴ is an apocalyptic number.

It is an amenable number.

308444 is a deficient number, since it is larger than the sum of its proper divisors (250156).

308444 is a wasteful number, since it uses less digits than its factorization.

308444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2692 (or 2690 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 308444 is about 555.3773491960. The cubic root of 308444 is about 67.5655695726.

The spelling of 308444 in words is "three hundred eight thousand, four hundred forty-four".