16418690 has 16 divisors (see below), whose sum is σ = 30241728. Its totient is φ = 6414576.

The previous prime is 16418671. The next prime is 16418707. The reversal of 16418690 is 9681461.

16418690 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×16418690² = 539146762632200, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 16418690.

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, 18662 + ... + 19521.

It is an arithmetic number, because the mean of its divisors is an integer number (1890108).

Almost surely, 2^16418690 is an apocalyptic number.

16418690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16418690 is a deficient number, since it is larger than the sum of its proper divisors (13823038).

16418690 is a wasteful number, since it uses less digits than its factorization.

16418690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38233.

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 16418690 is about 4051.9982724577. The cubic root of 16418690 is about 254.1632963213.

The spelling of 16418690 in words is "sixteen million, four hundred eighteen thousand, six hundred ninety".