16499470 has 32 divisors (see below), whose sum is σ = 32215680. Its totient is φ = 6084000.

The previous prime is 16499449. The next prime is 16499473. The reversal of 16499470 is 7499461.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16499473) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21595 + ... + 22345.

It is an arithmetic number, because the mean of its divisors is an integer number (1006740).

Almost surely, 2^16499470 is an apocalyptic number.

16499470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16499470 is a deficient number, since it is larger than the sum of its proper divisors (15716210).

16499470 is an equidigital number, since it uses as much as digits as its factorization.

16499470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 797 (or 771 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 16499470 is about 4061.9539633039. The cubic root of 16499470 is about 254.5794426245.

Subtracting from 16499470 its reverse (7499461), we obtain a palindrome (9000009).

The spelling of 16499470 in words is "sixteen million, four hundred ninety-nine thousand, four hundred seventy".