16597242 has 12 divisors (see below), whose sum is σ = 35960730. Its totient is φ = 5532408.

The previous prime is 16597213. The next prime is 16597267. The reversal of 16597242 is 24279561.

It can be written as a sum of positive squares in only one way, i.e., 11840481 + 4756761 = 3441^2 + 2181^2 .

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a zygodrome in base 4.

It is a junction number, because it is equal to n+sod(n) for n = 16597197 and 16597206.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 461017 + ... + 461052.

Almost surely, 2^16597242 is an apocalyptic number.

16597242 is an abundant number, since it is smaller than the sum of its proper divisors (19363488).

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

16597242 is a wasteful number, since it uses less digits than its factorization.

16597242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 922077 (or 922074 counting only the distinct ones).

The product of its digits is 30240, while the sum is 36.

The square root of 16597242 is about 4073.9712811948. The cubic root of 16597242 is about 255.0813120162.

The spelling of 16597242 in words is "sixteen million, five hundred ninety-seven thousand, two hundred forty-two".