16234457 has 4 divisors (see below), whose sum is σ = 16247220. Its totient is φ = 16221696.

The previous prime is 16234451. The next prime is 16234487. The reversal of 16234457 is 75443261.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 75443261 = 211 ⋅357551.

It can be written as a sum of positive squares in 2 ways, for example, as 9803161 + 6431296 = 3131^2 + 2536^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16234457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16234451) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4232 + ... + 7097.

It is an arithmetic number, because the mean of its divisors is an integer number (4061805).

Almost surely, 2^16234457 is an apocalyptic number.

It is an amenable number.

16234457 is a deficient number, since it is larger than the sum of its proper divisors (12763).

16234457 is a wasteful number, since it uses less digits than its factorization.

16234457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12762.

The product of its digits is 20160, while the sum is 32.

The square root of 16234457 is about 4029.2005410503. The cubic root of 16234457 is about 253.2090685956.

The spelling of 16234457 in words is "sixteen million, two hundred thirty-four thousand, four hundred fifty-seven".