16622402 has 4 divisors (see below), whose sum is σ = 24933606. Its totient is φ = 8311200.

The previous prime is 16622393. The next prime is 16622407. The reversal of 16622402 is 20422661.

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., 11689561 + 4932841 = 3419^2 + 2221^2 .

It is not an unprimeable number, because it can be changed into a prime (16622407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4155599 + ... + 4155602.

Almost surely, 2^16622402 is an apocalyptic number.

16622402 is a deficient number, since it is larger than the sum of its proper divisors (8311204).

16622402 is an equidigital number, since it uses as much as digits as its factorization.

16622402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8311203.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 16622402 is about 4077.0580079268. The cubic root of 16622402 is about 255.2101407611.

The spelling of 16622402 in words is "sixteen million, six hundred twenty-two thousand, four hundred two".