16965390 has 64 divisors (see below), whose sum is σ = 44960832. Its totient is φ = 4070400.

The previous prime is 16965383. The next prime is 16965407. The reversal of 16965390 is 9356961.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15460 + ... + 16520.

It is an arithmetic number, because the mean of its divisors is an integer number (702513).

Almost surely, 2^16965390 is an apocalyptic number.

16965390 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 16965390, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22480416).

16965390 is an abundant number, since it is smaller than the sum of its proper divisors (27995442).

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

16965390 is a wasteful number, since it uses less digits than its factorization.

16965390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1125.

The product of its (nonzero) digits is 43740, while the sum is 39.

The square root of 16965390 is about 4118.9064082594. The cubic root of 16965390 is about 256.9535462880.

The spelling of 16965390 in words is "sixteen million, nine hundred sixty-five thousand, three hundred ninety".