89245440240 has 80 divisors (see below), whose sum is σ = 301811861376. Its totient is φ = 21635257600.

The previous prime is 89245440197. The next prime is 89245440247. The reversal of 89245440240 is 4204454298.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×89245440240² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 89245440192 and 89245440201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89245440247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16899906 + ... + 16905185.

Almost surely, 2^89245440240 is an apocalyptic number.

89245440240 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

89245440240 is an abundant number, since it is smaller than the sum of its proper divisors (212566421136).

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

89245440240 is a wasteful number, since it uses less digits than its factorization.

89245440240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33805118 (or 33805112 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 42.

The spelling of 89245440240 in words is "eighty-nine billion, two hundred forty-five million, four hundred forty thousand, two hundred forty".