16400098 has 36 divisors (see below), whose sum is σ = 29352834. Its totient is φ = 6864000.

The previous prime is 16400093. The next prime is 16400101. The reversal of 16400098 is 89000461.

It can be written as a sum of positive squares in 3 ways, for example, as 13417569 + 2982529 = 3663^2 + 1727^2 .

It is not an unprimeable number, because it can be changed into a prime (16400093) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 40698 + ... + 41098.

Almost surely, 2^16400098 is an apocalyptic number.

16400098 is a deficient number, since it is larger than the sum of its proper divisors (12952736).

16400098 is a wasteful number, since it uses less digits than its factorization.

16400098 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451 (or 427 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 16400098 is about 4049.7034459328. The cubic root of 16400098 is about 254.0673246215.

The spelling of 16400098 in words is "sixteen million, four hundred thousand, ninety-eight".