16401485 has 4 divisors (see below), whose sum is σ = 19681788. Its totient is φ = 13121184.

The previous prime is 16401467. The next prime is 16401487. The reversal of 16401485 is 58410461.

16401485 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 58410461 = 251 ⋅232711.

It can be written as a sum of positive squares in 2 ways, for example, as 12945604 + 3455881 = 3598^2 + 1859^2 .

It is a cyclic number.

It is not a de Polignac number, because 16401485 - 2¹² = 16397389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16401487) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1640144 + ... + 1640153.

It is an arithmetic number, because the mean of its divisors is an integer number (4920447).

Almost surely, 2^16401485 is an apocalyptic number.

It is an amenable number.

16401485 is a deficient number, since it is larger than the sum of its proper divisors (3280303).

16401485 is an equidigital number, since it uses as much as digits as its factorization.

16401485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3280302.

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 16401485 is about 4049.8746894194. The cubic root of 16401485 is about 254.0744868032.

It can be divided in two parts, 1640 and 1485, that added together give a 5-th power (3125 = 5⁵).

The spelling of 16401485 in words is "sixteen million, four hundred one thousand, four hundred eighty-five".