16577242 has 12 divisors (see below), whose sum is σ = 27332298. Its totient is φ = 7535000.

The previous prime is 16577237. The next prime is 16577257. The reversal of 16577242 is 24277561.

It can be written as a sum of positive squares in only one way, i.e., 16475481 + 101761 = 4059^2 + 319^2 .

It is a junction number, because it is equal to n+sod(n) for n = 16577198 and 16577207.

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, 34009 + ... + 34492.

Almost surely, 2^16577242 is an apocalyptic number.

16577242 is a deficient number, since it is larger than the sum of its proper divisors (10755056).

16577242 is a wasteful number, since it uses less digits than its factorization.

16577242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68525 (or 68514 counting only the distinct ones).

The product of its digits is 23520, while the sum is 34.

The square root of 16577242 is about 4071.5159338998. The cubic root of 16577242 is about 254.9788115164.

The spelling of 16577242 in words is "sixteen million, five hundred seventy-seven thousand, two hundred forty-two".