8920240 has 80 divisors (see below), whose sum is σ = 25123392. Its totient is φ = 2875392.

The previous prime is 8920201. The next prime is 8920243. The reversal of 8920240 is 420298.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8920243) 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, 9052 + ... + 9988.

Almost surely, 2^8920240 is an apocalyptic number.

8920240 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 8920240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12561696).

8920240 is an abundant number, since it is smaller than the sum of its proper divisors (16203152).

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

8920240 is a wasteful number, since it uses less digits than its factorization.

8920240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 974 (or 968 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 8920240 is about 2986.6770833152. The cubic root of 8920240 is about 207.3920859493.

The spelling of 8920240 in words is "eight million, nine hundred twenty thousand, two hundred forty".