320069880 has 384 divisors, whose sum is σ = 1238328000. Its totient is φ = 73654272.

The previous prime is 320069873. The next prime is 320069927. The reversal of 320069880 is 88960023.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

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 95 ways as a sum of consecutive naturals, for example, 2148046 + ... + 2148194.

Almost surely, 2^320069880 is an apocalyptic number.

320069880 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 320069880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (619164000).

320069880 is an abundant number, since it is smaller than the sum of its proper divisors (918258120).

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

320069880 is a wasteful number, since it uses less digits than its factorization.

320069880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205 (or 189 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 320069880 is about 17890.4969187555. The cubic root of 320069880 is about 684.0401638466.

The spelling of 320069880 in words is "three hundred twenty million, sixty-nine thousand, eight hundred eighty".