16488442 has 4 divisors (see below), whose sum is σ = 24732666. Its totient is φ = 8244220.

The previous prime is 16488431. The next prime is 16488463. The reversal of 16488442 is 24488461.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24488461 = 4519 ⋅5419.

It can be written as a sum of positive squares in only one way, i.e., 16410601 + 77841 = 4051^2 + 279^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4122109 + ... + 4122112.

Almost surely, 2^16488442 is an apocalyptic number.

16488442 is a deficient number, since it is larger than the sum of its proper divisors (8244224).

16488442 is an equidigital number, since it uses as much as digits as its factorization.

16488442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8244223.

The product of its digits is 49152, while the sum is 37.

The square root of 16488442 is about 4060.5962616345. The cubic root of 16488442 is about 254.5227109472.

The spelling of 16488442 in words is "sixteen million, four hundred eighty-eight thousand, four hundred forty-two".