16069640 has 32 divisors (see below), whose sum is σ = 37730880. Its totient is φ = 6148032.

The previous prime is 16069637. The next prime is 16069661. The reversal of 16069640 is 4696061.

It is a junction number, because it is equal to n+sod(n) for n = 16069597 and 16069606.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7814 + ... + 9653.

It is an arithmetic number, because the mean of its divisors is an integer number (1179090).

Almost surely, 2^16069640 is an apocalyptic number.

16069640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16069640 is an abundant number, since it is smaller than the sum of its proper divisors (21661240).

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

16069640 is a wasteful number, since it uses less digits than its factorization.

16069640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17501 (or 17497 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 16069640 is about 4008.6955484297. The cubic root of 16069640 is about 252.3492679432.

The spelling of 16069640 in words is "sixteen million, sixty-nine thousand, six hundred forty".