16428957 has 8 divisors (see below), whose sum is σ = 22099584. Its totient is φ = 10855488.

The previous prime is 16428943. The next prime is 16428961. The reversal of 16428957 is 75982461.

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

It is not a de Polignac number, because 16428957 - 2⁴ = 16428941 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16428157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23893 + ... + 24570.

It is an arithmetic number, because the mean of its divisors is an integer number (2762448).

Almost surely, 2^16428957 is an apocalyptic number.

It is an amenable number.

16428957 is a deficient number, since it is larger than the sum of its proper divisors (5670627).

16428957 is a wasteful number, since it uses less digits than its factorization.

16428957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48579.

The product of its digits is 120960, while the sum is 42.

The square root of 16428957 is about 4053.2649802351. The cubic root of 16428957 is about 254.2162634140.

The spelling of 16428957 in words is "sixteen million, four hundred twenty-eight thousand, nine hundred fifty-seven".