913444 has 48 divisors (see below), whose sum is σ = 2056320. Its totient is φ = 345600.

The previous prime is 913441. The next prime is 913447. The reversal of 913444 is 444319.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (913441) and next prime (913447).

It is a super-2 number, since 2×913444² = 1668759882272, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (913441) 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, 8994 + ... + 9094.

It is an arithmetic number, because the mean of its divisors is an integer number (42840).

2⁹¹³⁴⁴⁴ 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 913444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1028160).

913444 is an abundant number, since it is smaller than the sum of its proper divisors (1142876).

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

913444 is a wasteful number, since it uses less digits than its factorization.

913444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148 (or 146 counting only the distinct ones).

The product of its digits is 1728, while the sum is 25.

The square root of 913444 is about 955.7426431838. The cubic root of 913444 is about 97.0273065857.

The spelling of 913444 in words is "nine hundred thirteen thousand, four hundred forty-four".