16448690 has 16 divisors (see below), whose sum is σ = 31349592. Its totient is φ = 6192384.

The previous prime is 16448671. The next prime is 16448717. The reversal of 16448690 is 9684461.

It can be written as a sum of positive squares in 4 ways, for example, as 16394401 + 54289 = 4049^2 + 233^2 .

It is a super-2 number, since 2×16448690² = 541118805432200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48209 + ... + 48548.

Almost surely, 2^16448690 is an apocalyptic number.

16448690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16448690 is a deficient number, since it is larger than the sum of its proper divisors (14900902).

16448690 is a wasteful number, since it uses less digits than its factorization.

16448690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96781.

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 16448690 is about 4055.6984601915. The cubic root of 16448690 is about 254.3180033363.

The spelling of 16448690 in words is "sixteen million, four hundred forty-eight thousand, six hundred ninety".