16240408 has 8 divisors (see below), whose sum is σ = 30450780. Its totient is φ = 8120200.

The previous prime is 16240403. The next prime is 16240417. The reversal of 16240408 is 80404261.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16240403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1015018 + ... + 1015033.

Almost surely, 2^16240408 is an apocalyptic number.

It is an amenable number.

16240408 is a deficient number, since it is larger than the sum of its proper divisors (14210372).

16240408 is a wasteful number, since it uses less digits than its factorization.

16240408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2030057 (or 2030053 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 16240408 is about 4029.9389573541. The cubic root of 16240408 is about 253.2400040947.

Adding to 16240408 its reverse (80404261), we get a palindrome (96644669).

The spelling of 16240408 in words is "sixteen million, two hundred forty thousand, four hundred eight".