16424639 has 8 divisors (see below), whose sum is σ = 20477568. Its totient is φ = 12798360.

The previous prime is 16424627. The next prime is 16424651. The reversal of 16424639 is 93642461.

It is an interprime number because it is at equal distance from previous prime (16424627) and next prime (16424651).

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

It is a cyclic number.

It is not a de Polignac number, because 16424639 - 2⁴ = 16424623 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16424599 and 16424608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16424039) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106577 + ... + 106730.

It is an arithmetic number, because the mean of its divisors is an integer number (2559696).

Almost surely, 2^16424639 is an apocalyptic number.

16424639 is a deficient number, since it is larger than the sum of its proper divisors (4052929).

16424639 is a wasteful number, since it uses less digits than its factorization.

16424639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213325.

The product of its digits is 31104, while the sum is 35.

The square root of 16424639 is about 4052.7322882224. The cubic root of 16424639 is about 254.1939896931.

The spelling of 16424639 in words is "sixteen million, four hundred twenty-four thousand, six hundred thirty-nine".