98440029640 has 16 divisors (see below), whose sum is σ = 221490066780. Its totient is φ = 39376011840.

The previous prime is 98440029619. The next prime is 98440029641. The reversal of 98440029640 is 4692004489.

It can be written as a sum of positive squares in 2 ways, for example, as 89340014404 + 9100015236 = 298898^2 + 95394^2 .

It is not an unprimeable number, because it can be changed into a prime (98440029641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1230500331 + ... + 1230500410.

Almost surely, 2^98440029640 is an apocalyptic number.

It is an amenable number.

98440029640 is an abundant number, since it is smaller than the sum of its proper divisors (123050037140).

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

98440029640 is a wasteful number, since it uses less digits than its factorization.

98440029640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2461000752 (or 2461000748 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 46.

The spelling of 98440029640 in words is "ninety-eight billion, four hundred forty million, twenty-nine thousand, six hundred forty".