16289240 has 32 divisors (see below), whose sum is σ = 39983760. Its totient is φ = 5923200.

The previous prime is 16289239. The next prime is 16289261. The reversal of 16289240 is 4298261.

It is a plaindrome in base 12.

It is a junction number, because it is equal to n+sod(n) for n = 16289197 and 16289206.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 18071 + ... + 18950.

Almost surely, 2^16289240 is an apocalyptic number.

16289240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16289240 is an abundant number, since it is smaller than the sum of its proper divisors (23694520).

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

16289240 is a wasteful number, since it uses less digits than its factorization.

16289240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37043 (or 37039 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 16289240 is about 4035.9930624321. The cubic root of 16289240 is about 253.4935659142.

The spelling of 16289240 in words is "sixteen million, two hundred eighty-nine thousand, two hundred forty".