308672080 has 20 divisors (see below), whose sum is σ = 717662772. Its totient is φ = 123468800.

The previous prime is 308672071. The next prime is 308672083. The reversal of 308672080 is 80276803.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 73479184 + 235192896 = 8572^2 + 15336^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (308672083) 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, 1929121 + ... + 1929280.

Almost surely, 2^308672080 is an apocalyptic number.

It is an amenable number.

308672080 is an abundant number, since it is smaller than the sum of its proper divisors (408990692).

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

308672080 is a wasteful number, since it uses less digits than its factorization.

308672080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3858414 (or 3858408 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 308672080 is about 17569.0659968024. The cubic root of 308672080 is about 675.8221933537.

The spelling of 308672080 in words is "three hundred eight million, six hundred seventy-two thousand, eighty".