16497240 has 32 divisors (see below), whose sum is σ = 49492080. Its totient is φ = 4399232.

The previous prime is 16497193. The next prime is 16497241. The reversal of 16497240 is 4279461.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16497241) 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, 68619 + ... + 68858.

Almost surely, 2^16497240 is an apocalyptic number.

16497240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16497240 is an abundant number, since it is smaller than the sum of its proper divisors (32994840).

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

16497240 is a wasteful number, since it uses less digits than its factorization.

16497240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137491 (or 137487 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 16497240 is about 4061.6794555947. The cubic root of 16497240 is about 254.5679728069.

The spelling of 16497240 in words is "sixteen million, four hundred ninety-seven thousand, two hundred forty".