16245440 has 28 divisors (see below), whose sum is σ = 38685216. Its totient is φ = 6498048.

The previous prime is 16245433. The next prime is 16245451. The reversal of 16245440 is 4454261.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25064 + ... + 25703.

Almost surely, 2^16245440 is an apocalyptic number.

16245440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16245440 is an abundant number, since it is smaller than the sum of its proper divisors (22439776).

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

16245440 is an equidigital number, since it uses as much as digits as its factorization.

16245440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50784 (or 50774 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 16245440 is about 4030.5632360751. The cubic root of 16245440 is about 253.2661563956.

The spelling of 16245440 in words is "sixteen million, two hundred forty-five thousand, four hundred forty".