16945416 has 64 divisors (see below), whose sum is σ = 49560000. Its totient is φ = 5349888.

The previous prime is 16945403. The next prime is 16945429. The reversal of 16945416 is 61454961.

It is an interprime number because it is at equal distance from previous prime (16945403) and next prime (16945429).

It is a Harshad number since it is a multiple of its sum of digits (36).

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

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2040 + ... + 6168.

It is an arithmetic number, because the mean of its divisors is an integer number (774375).

Almost surely, 2^16945416 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16945416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24780000).

16945416 is an abundant number, since it is smaller than the sum of its proper divisors (32614584).

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

16945416 is a wasteful number, since it uses less digits than its factorization.

16945416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4163 (or 4153 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 16945416 is about 4116.4810214551. The cubic root of 16945416 is about 256.8526662878.

The spelling of 16945416 in words is "sixteen million, nine hundred forty-five thousand, four hundred sixteen".