16004690 has 16 divisors (see below), whose sum is σ = 31024728. Its totient is φ = 5909376.

The previous prime is 16004687. The next prime is 16004713. The reversal of 16004690 is 9640061.

16004690 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 13402921 + 2601769 = 3661^2 + 1613^2 .

It is a super-2 number, since 2×16004690² = 512300203992200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26).

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, 61427 + ... + 61686.

Almost surely, 2^16004690 is an apocalyptic number.

16004690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16004690 is a deficient number, since it is larger than the sum of its proper divisors (15020038).

16004690 is a wasteful number, since it uses less digits than its factorization.

16004690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123133.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 16004690 is about 4000.5862070452. The cubic root of 16004690 is about 252.0088285309.

The spelling of 16004690 in words is "sixteen million, four thousand, six hundred ninety".