913920 has 160 divisors (see below), whose sum is σ = 3535488. Its totient is φ = 196608.

The previous prime is 913907. The next prime is 913921. The reversal of 913920 is 29319.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (160).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 913920.

It is not an unprimeable number, because it can be changed into a prime (913921) by changing a digit.

913920 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53752 + ... + 53768.

2⁹¹³⁹²⁰ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 913920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1767744).

913920 is an abundant number, since it is smaller than the sum of its proper divisors (2621568).

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

913920 is a wasteful number, since it uses less digits than its factorization.

913920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50 (or 34 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 24.

The square root of 913920 is about 955.9916317625. The cubic root of 913920 is about 97.0441574556.

The spelling of 913920 in words is "nine hundred thirteen thousand, nine hundred twenty".