16457442 has 16 divisors (see below), whose sum is σ = 34050240. Its totient is φ = 5296592.

The previous prime is 16457431. The next prime is 16457447. The reversal of 16457442 is 24475461.

It is not an unprimeable number, because it can be changed into a prime (16457447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47118 + ... + 47465.

It is an arithmetic number, because the mean of its divisors is an integer number (2128140).

Almost surely, 2^16457442 is an apocalyptic number.

16457442 is an abundant number, since it is smaller than the sum of its proper divisors (17592798).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16457442 is a wasteful number, since it uses less digits than its factorization.

16457442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94617.

The product of its digits is 26880, while the sum is 33.

The square root of 16457442 is about 4056.7772923837. Note that the first 3 decimals coincide. The cubic root of 16457442 is about 254.3631010820.

The spelling of 16457442 in words is "sixteen million, four hundred fifty-seven thousand, four hundred forty-two".