16081290 has 24 divisors (see below), whose sum is σ = 41811588. Its totient is φ = 4288320.

The previous prime is 16081271. The next prime is 16081291. The reversal of 16081290 is 9218061.

16081290 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 2 ways, for example, as 15752961 + 328329 = 3969^2 + 573^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16081291) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 89251 + ... + 89430.

Almost surely, 2^16081290 is an apocalyptic number.

16081290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16081290 is an abundant number, since it is smaller than the sum of its proper divisors (25730298).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16081290 is a wasteful number, since it uses less digits than its factorization.

16081290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178694 (or 178691 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 16081290 is about 4010.1483763073. The cubic root of 16081290 is about 252.4102350592.

The spelling of 16081290 in words is "sixteen million, eighty-one thousand, two hundred ninety".