16495940 has 24 divisors (see below), whose sum is σ = 35488152. Its totient is φ = 6437120.

The previous prime is 16495931. The next prime is 16495949. The reversal of 16495940 is 4959461.

It is an interprime number because it is at equal distance from previous prime (16495931) and next prime (16495949).

It can be written as a sum of positive squares in 4 ways, for example, as 222784 + 16273156 = 472^2 + 4034^2 .

It is a nialpdrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 16495894 and 16495903.

It is not an unprimeable number, because it can be changed into a prime (16495949) 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, 9239 + ... + 10878.

It is an arithmetic number, because the mean of its divisors is an integer number (1478673).

Almost surely, 2^16495940 is an apocalyptic number.

16495940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16495940 is an abundant number, since it is smaller than the sum of its proper divisors (18992212).

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

16495940 is a wasteful number, since it uses less digits than its factorization.

16495940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20167 (or 20165 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 16495940 is about 4061.5194201185. The cubic root of 16495940 is about 254.5612858892.

The spelling of 16495940 in words is "sixteen million, four hundred ninety-five thousand, nine hundred forty".