16398622 has 8 divisors (see below), whose sum is σ = 25262856. Its totient is φ = 7977672.

The previous prime is 16398619. The next prime is 16398623. The reversal of 16398622 is 22689361.

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

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16398623) 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, 110728 + ... + 110875.

It is an arithmetic number, because the mean of its divisors is an integer number (3157857).

Almost surely, 2^16398622 is an apocalyptic number.

16398622 is a deficient number, since it is larger than the sum of its proper divisors (8864234).

16398622 is a wasteful number, since it uses less digits than its factorization.

16398622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221642.

The product of its digits is 31104, while the sum is 37.

The square root of 16398622 is about 4049.5212062662. The cubic root of 16398622 is about 254.0597024187.

It can be divided in two parts, 16398 and 622, that added together give a triangular number (17020 = T₁₈₄).

The spelling of 16398622 in words is "sixteen million, three hundred ninety-eight thousand, six hundred twenty-two".