16900401 has 16 divisors (see below), whose sum is σ = 26302464. Its totient is φ = 9451344.

The previous prime is 16900369. The next prime is 16900421. The reversal of 16900401 is 10400961.

It is not a de Polignac number, because 16900401 - 2⁵ = 16900369 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (16900421) 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, 7575 + ... + 9548.

It is an arithmetic number, because the mean of its divisors is an integer number (1643904).

Almost surely, 2^16900401 is an apocalyptic number.

It is an amenable number.

16900401 is a deficient number, since it is larger than the sum of its proper divisors (9402063).

16900401 is a wasteful number, since it uses less digits than its factorization.

16900401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17180.

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 16900401 is about 4111.0097299812. The cubic root of 16900401 is about 256.6250240719.

It can be divided in two parts, 1690040 and 1, that added together give a triangular number (1690041 = T₁₈₃₈).

The spelling of 16900401 in words is "sixteen million, nine hundred thousand, four hundred one".