16365940 has 24 divisors (see below), whose sum is σ = 34786080. Its totient is φ = 6466848.

The previous prime is 16365919. The next prime is 16365941. The reversal of 16365940 is 4956361.

It is a junction number, because it is equal to n+sod(n) for n = 16365896 and 16365905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16365941) 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, 3270 + ... + 6589.

It is an arithmetic number, because the mean of its divisors is an integer number (1449420).

Almost surely, 2^16365940 is an apocalyptic number.

16365940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16365940 is an abundant number, since it is smaller than the sum of its proper divisors (18420140).

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

16365940 is a wasteful number, since it uses less digits than its factorization.

16365940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9951 (or 9949 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 16365940 is about 4045.4839018342. The cubic root of 16365940 is about 253.8908121849.

The spelling of 16365940 in words is "sixteen million, three hundred sixty-five thousand, nine hundred forty".