20069320 has 32 divisors (see below), whose sum is σ = 47534400. Its totient is φ = 7604928.

The previous prime is 20069303. The next prime is 20069321. The reversal of 20069320 is 2396002.

It is a junction number, because it is equal to n+sod(n) for n = 20069291 and 20069300.

It is not an unprimeable number, because it can be changed into a prime (20069321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12444 + ... + 13963.

It is an arithmetic number, because the mean of its divisors is an integer number (1485450).

Almost surely, 2^20069320 is an apocalyptic number.

20069320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20069320 is an abundant number, since it is smaller than the sum of its proper divisors (27465080).

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

20069320 is a wasteful number, since it uses less digits than its factorization.

20069320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26437 (or 26433 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 20069320 is about 4479.8794626641. The cubic root of 20069320 is about 271.7550057517.

The spelling of 20069320 in words is "twenty million, sixty-nine thousand, three hundred twenty".