16617442 has 8 divisors (see below), whose sum is σ = 25122816. Its totient is φ = 8243172.

The previous prime is 16617439. The next prime is 16617443. The reversal of 16617442 is 24471661.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×16617442² = 552278757246728, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16617443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32458 + ... + 32965.

It is an arithmetic number, because the mean of its divisors is an integer number (3140352).

Almost surely, 2^16617442 is an apocalyptic number.

16617442 is a deficient number, since it is larger than the sum of its proper divisors (8505374).

16617442 is a wasteful number, since it uses less digits than its factorization.

16617442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65552.

The product of its digits is 8064, while the sum is 31.

The square root of 16617442 is about 4076.4496807884. The cubic root of 16617442 is about 255.1847539724.

The spelling of 16617442 in words is "sixteen million, six hundred seventeen thousand, four hundred forty-two".