16427457 has 24 divisors (see below), whose sum is σ = 26451360. Its totient is φ = 9763200.

The previous prime is 16427449. The next prime is 16427459. The reversal of 16427457 is 75472461.

16427457 is a `hidden beast` number, since 1 + 642 + 7 + 4 + 5 + 7 = 666.

It is not a de Polignac number, because 16427457 - 2³ = 16427449 is a prime.

It is a super-2 number, since 2×16427457² = 539722686973698, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16427459) 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 in 23 ways as a sum of consecutive naturals, for example, 82 + ... + 5732.

It is an arithmetic number, because the mean of its divisors is an integer number (1102140).

Almost surely, 2^16427457 is an apocalyptic number.

16427457 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

16427457 is a deficient number, since it is larger than the sum of its proper divisors (10023903).

16427457 is a wasteful number, since it uses less digits than its factorization.

16427457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5693 (or 5690 counting only the distinct ones).

The product of its digits is 47040, while the sum is 36.

The square root of 16427457 is about 4053.0799399962. The cubic root of 16427457 is about 254.2085263434.

The spelling of 16427457 in words is "sixteen million, four hundred twenty-seven thousand, four hundred fifty-seven".