16169490 has 32 divisors (see below), whose sum is σ = 43119360. Its totient is φ = 4311792.

The previous prime is 16169477. The next prime is 16169497. The reversal of 16169490 is 9496161.

16169490 is a `hidden beast` number, since 1 + 6 + 169 + 490 = 666.

It is a super-2 number, since 2×16169490² = 522904813720200, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (16169497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29674 + ... + 30213.

It is an arithmetic number, because the mean of its divisors is an integer number (1347480).

Almost surely, 2^16169490 is an apocalyptic number.

16169490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16169490 is an abundant number, since it is smaller than the sum of its proper divisors (26949870).

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

16169490 is a wasteful number, since it uses less digits than its factorization.

16169490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59903 (or 59897 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 16169490 is about 4021.1304380734. The cubic root of 16169490 is about 252.8708532805.

The spelling of 16169490 in words is "sixteen million, one hundred sixty-nine thousand, four hundred ninety".