16789290 has 64 divisors (see below), whose sum is σ = 47554560. Its totient is φ = 3712320.

The previous prime is 16789249. The next prime is 16789291. The reversal of 16789290 is 9298761.

It is a Harshad number since it is a multiple of its sum of digits (42).

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 (16789291) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5221 + ... + 7799.

It is an arithmetic number, because the mean of its divisors is an integer number (743040).

Almost surely, 2^16789290 is an apocalyptic number.

16789290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 16789290, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23777280).

16789290 is an abundant number, since it is smaller than the sum of its proper divisors (30765270).

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

16789290 is a wasteful number, since it uses less digits than its factorization.

16789290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2627.

The product of its (nonzero) digits is 54432, while the sum is 42.

The square root of 16789290 is about 4097.4736118735. The cubic root of 16789290 is about 256.0613968137.

The spelling of 16789290 in words is "sixteen million, seven hundred eighty-nine thousand, two hundred ninety".