16495440 has 160 divisors (see below), whose sum is σ = 58496256. Its totient is φ = 3809280.

The previous prime is 16495411. The next prime is 16495447. The reversal of 16495440 is 4459461.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16495447) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 52885 + ... + 53195.

Almost surely, 2^16495440 is an apocalyptic number.

16495440 is a gapful number since it is divisible by the number (10) 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 16495440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29248128).

16495440 is an abundant number, since it is smaller than the sum of its proper divisors (42000816).

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

16495440 is a wasteful number, since it uses less digits than its factorization.

16495440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357 (or 351 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 16495440 is about 4061.4578663332. The cubic root of 16495440 is about 254.5587139042.

The spelling of 16495440 in words is "sixteen million, four hundred ninety-five thousand, four hundred forty".