308346880 has 68 divisors (see below), whose sum is σ = 740813292. Its totient is φ = 123207680.

The previous prime is 308346853. The next prime is 308346893. The reversal of 308346880 is 88643803.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 150994944 + 157351936 = 12288^2 + 12544^2 .

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 327210 + ... + 328150.

Almost surely, 2^308346880 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 308346880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (370406646).

308346880 is an abundant number, since it is smaller than the sum of its proper divisors (432466412).

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

308346880 is an frugal number, since it uses more digits than its factorization.

308346880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 978 (or 948 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 40.

The square root of 308346880 is about 17559.8086549939. The cubic root of 308346880 is about 675.5847735388.

The spelling of 308346880 in words is "three hundred eight million, three hundred forty-six thousand, eight hundred eighty".