16730890 has 64 divisors (see below), whose sum is σ = 36391680. Its totient is φ = 5463040.

The previous prime is 16730863. The next prime is 16730899. The reversal of 16730890 is 9803761.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is not an unprimeable number, because it can be changed into a prime (16730899) 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, 42816 + ... + 43204.

It is an arithmetic number, because the mean of its divisors is an integer number (568620).

Almost surely, 2^16730890 is an apocalyptic number.

16730890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16730890 is an abundant number, since it is smaller than the sum of its proper divisors (19660790).

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

16730890 is a wasteful number, since it uses less digits than its factorization.

16730890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 447.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 16730890 is about 4090.3410615742. The cubic root of 16730890 is about 255.7641565721.

The spelling of 16730890 in words is "sixteen million, seven hundred thirty thousand, eight hundred ninety".