16946642 has 4 divisors (see below), whose sum is σ = 25419966. Its totient is φ = 8473320.

The previous prime is 16946627. The next prime is 16946663. The reversal of 16946642 is 24664961.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 14753281 + 2193361 = 3841^2 + 1481^2 .

It is a junction number, because it is equal to n+sod(n) for n = 16946596 and 16946605.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4236659 + ... + 4236662.

Almost surely, 2^16946642 is an apocalyptic number.

16946642 is a deficient number, since it is larger than the sum of its proper divisors (8473324).

16946642 is an equidigital number, since it uses as much as digits as its factorization.

16946642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8473323.

The product of its digits is 62208, while the sum is 38.

The square root of 16946642 is about 4116.6299323597. The cubic root of 16946642 is about 256.8588605643.

The spelling of 16946642 in words is "sixteen million, nine hundred forty-six thousand, six hundred forty-two".