16115890 has 16 divisors (see below), whose sum is σ = 33152832. Its totient is φ = 5525424.

The previous prime is 16115887. The next prime is 16115917. The reversal of 16115890 is 9851161.

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, 115044 + ... + 115183.

It is an arithmetic number, because the mean of its divisors is an integer number (2072052).

Almost surely, 2^16115890 is an apocalyptic number.

16115890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16115890 is an abundant number, since it is smaller than the sum of its proper divisors (17036942).

16115890 is a wasteful number, since it uses less digits than its factorization.

16115890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230241.

The product of its (nonzero) digits is 2160, while the sum is 31.

The square root of 16115890 is about 4014.4601131410. The cubic root of 16115890 is about 252.5911313702.

The spelling of 16115890 in words is "sixteen million, one hundred fifteen thousand, eight hundred ninety".