89849040 has 160 divisors (see below), whose sum is σ = 298480896. Its totient is φ = 22302720.

The previous prime is 89848981. The next prime is 89849041. The reversal of 89849040 is 4094898.

It is a junction number, because it is equal to n+sod(n) for n = 89848983 and 89849001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89849041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 226122 + ... + 226518.

Almost surely, 2^89849040 is an apocalyptic number.

89849040 is a gapful number since it is divisible by the number (80) 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 89849040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (149240448).

89849040 is an abundant number, since it is smaller than the sum of its proper divisors (208631856).

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

89849040 is a wasteful number, since it uses less digits than its factorization.

89849040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 477 (or 471 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 42.

The square root of 89849040 is about 9478.8733507733. The cubic root of 89849040 is about 447.8897741152.

The spelling of 89849040 in words is "eighty-nine million, eight hundred forty-nine thousand, forty".