98872021440 has 280 divisors, whose sum is σ = 352194674832. Its totient is φ = 26329190400.

The previous prime is 98872021393. The next prime is 98872021447. The reversal of 98872021440 is 4412027889.

98872021440 is a `hidden beast` number, since 98 + 87 + 20 + 21 + 440 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98872021447) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 22211215 + ... + 22215665.

Almost surely, 2^98872021440 is an apocalyptic number.

98872021440 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 98872021440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (176097337416).

98872021440 is an abundant number, since it is smaller than the sum of its proper divisors (253322653392).

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

98872021440 is a wasteful number, since it uses less digits than its factorization.

98872021440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5337 (or 5318 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 45.

The spelling of 98872021440 in words is "ninety-eight billion, eight hundred seventy-two million, twenty-one thousand, four hundred forty".