16090381 has 8 divisors (see below), whose sum is σ = 17089920. Its totient is φ = 15096768.

The previous prime is 16090379. The next prime is 16090387. The reversal of 16090381 is 18309061.

It is a happy number.

16090381 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16090381 - 2¹ = 16090379 is a prime.

It is a super-2 number, since 2×16090381² = 517800721450322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16090387) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4950 + ... + 7528.

It is an arithmetic number, because the mean of its divisors is an integer number (2136240).

Almost surely, 2^16090381 is an apocalyptic number.

It is an amenable number.

16090381 is a deficient number, since it is larger than the sum of its proper divisors (999539).

16090381 is a wasteful number, since it uses less digits than its factorization.

16090381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2963.

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 16090381 is about 4011.2817153623. The cubic root of 16090381 is about 252.4577898922.

It can be divided in two parts, 16090 and 381, that added together give a triangular number (16471 = T₁₈₁).

The spelling of 16090381 in words is "sixteen million, ninety thousand, three hundred eighty-one".