18448016 has 10 divisors (see below), whose sum is σ = 35743062. Its totient is φ = 9224000.

The previous prime is 18448013. The next prime is 18448019. The reversal of 18448016 is 61084481.

It is an interprime number because it is at equal distance from previous prime (18448013) and next prime (18448019).

It can be written as a sum of positive squares in only one way, i.e., 17673616 + 774400 = 4204^2 + 880^2 .

It is not an unprimeable number, because it can be changed into a prime (18448013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 576485 + ... + 576516.

Almost surely, 2^18448016 is an apocalyptic number.

18448016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

18448016 is a deficient number, since it is larger than the sum of its proper divisors (17295046).

18448016 is a wasteful number, since it uses less digits than its factorization.

18448016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1153009 (or 1153003 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 32.

The square root of 18448016 is about 4295.1153651561. The cubic root of 18448016 is about 264.2306676965.

The spelling of 18448016 in words is "eighteen million, four hundred forty-eight thousand, sixteen".