16430427 has 24 divisors (see below), whose sum is σ = 25696944. Its totient is φ = 10056384.

The previous prime is 16430419. The next prime is 16430437. The reversal of 16430427 is 72403461.

It is not a de Polignac number, because 16430427 - 2³ = 16430419 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16430427.

It is not an unprimeable number, because it can be changed into a prime (16430437) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 36868 + ... + 37310.

It is an arithmetic number, because the mean of its divisors is an integer number (1070706).

Almost surely, 2^16430427 is an apocalyptic number.

16430427 is a deficient number, since it is larger than the sum of its proper divisors (9266517).

16430427 is a wasteful number, since it uses less digits than its factorization.

16430427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 779 (or 776 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 16430427 is about 4053.4463114737. The cubic root of 16430427 is about 254.2238452863.

Adding to 16430427 its reverse (72403461), we get a palindrome (88833888).

The spelling of 16430427 in words is "sixteen million, four hundred thirty thousand, four hundred twenty-seven".