16428357 has 48 divisors (see below), whose sum is σ = 27495936. Its totient is φ = 9360000.

The previous prime is 16428343. The next prime is 16428359. The reversal of 16428357 is 75382461.

16428357 is a `hidden beast` number, since 1 + 642 + 8 + 3 + 5 + 7 = 666.

It is not a de Polignac number, because 16428357 - 2⁷ = 16428229 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16428359) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 162607 + ... + 162707.

It is an arithmetic number, because the mean of its divisors is an integer number (572832).

Almost surely, 2^16428357 is an apocalyptic number.

It is an amenable number.

16428357 is a deficient number, since it is larger than the sum of its proper divisors (11067579).

16428357 is a wasteful number, since it uses less digits than its factorization.

16428357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202 (or 199 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 16428357 is about 4053.1909651533. The cubic root of 16428357 is about 254.2131686423.

It can be divided in two parts, 1642 and 8357, that added together give a palindrome (9999).

The spelling of 16428357 in words is "sixteen million, four hundred twenty-eight thousand, three hundred fifty-seven".