308420568 has 128 divisors (see below), whose sum is σ = 903960000. Its totient is φ = 97284096.

The previous prime is 308420551. The next prime is 308420591. The reversal of 308420568 is 865024803.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 331528 + ... + 332456.

Almost surely, 2^308420568 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 308420568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (451980000).

308420568 is an abundant number, since it is smaller than the sum of its proper divisors (595539432).

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

308420568 is a wasteful number, since it uses less digits than its factorization.

308420568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1026 (or 1016 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The square root of 308420568 is about 17561.9067301931. The cubic root of 308420568 is about 675.6385857969.

The spelling of 308420568 in words is "three hundred eight million, four hundred twenty thousand, five hundred sixty-eight".