98400538 has 16 divisors (see below), whose sum is σ = 156820680. Its totient is φ = 46218816.

The previous prime is 98400527. The next prime is 98400553. The reversal of 98400538 is 83500489.

It can be written as a sum of positive squares in 4 ways, for example, as 96569929 + 1830609 = 9827^2 + 1353^2 .

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a junction number, because it is equal to n+sod(n) for n = 98400497 and 98400506.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20781 + ... + 25072.

Almost surely, 2^98400538 is an apocalyptic number.

98400538 is a deficient number, since it is larger than the sum of its proper divisors (58420142).

98400538 is a wasteful number, since it uses less digits than its factorization.

98400538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45921.

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 98400538 is about 9919.7045318901. The cubic root of 98400538 is about 461.6708893397.

The spelling of 98400538 in words is "ninety-eight million, four hundred thousand, five hundred thirty-eight".