308989380 has 48 divisors (see below), whose sum is σ = 988767360. Its totient is φ = 70626048.

The previous prime is 308989367. The next prime is 308989409. The reversal of 308989380 is 83989803.

308989380 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 367425 + ... + 368264.

It is an arithmetic number, because the mean of its divisors is an integer number (20599320).

Almost surely, 2^308989380 is an apocalyptic number.

308989380 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

308989380 is an abundant number, since it is smaller than the sum of its proper divisors (679777980).

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

308989380 is a wasteful number, since it uses less digits than its factorization.

308989380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 735708 (or 735706 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 48.

The square root of 308989380 is about 17578.0937533056. The cubic root of 308989380 is about 676.0536849164.

The spelling of 308989380 in words is "three hundred eight million, nine hundred eighty-nine thousand, three hundred eighty".