16000457 has 4 divisors (see below), whose sum is σ = 17455056. Its totient is φ = 14545860.

The previous prime is 16000447. The next prime is 16000463. The reversal of 16000457 is 75400061.

16000457 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 16000457 - 2⁶ = 16000393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16000447) 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, 727283 + ... + 727304.

It is an arithmetic number, because the mean of its divisors is an integer number (4363764).

Almost surely, 2^16000457 is an apocalyptic number.

It is an amenable number.

16000457 is a deficient number, since it is larger than the sum of its proper divisors (1454599).

16000457 is a wasteful number, since it uses less digits than its factorization.

16000457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1454598.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 16000457 is about 4000.0571245921. The cubic root of 16000457 is about 251.9866090558.

It can be divided in two parts, 160004 and 57, that added together give a palindrome (160061).

The spelling of 16000457 in words is "sixteen million, four hundred fifty-seven", and thus it is an aban number.