1044720 has 60 divisors (see below), whose sum is σ = 3510936. Its totient is φ = 278400.

The previous prime is 1044697. The next prime is 1044727. The reversal of 1044720 is 274401.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a zygodrome in base 2 and base 4.

It is a junction number, because it is equal to n+sod(n) for n = 1044693 and 1044702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1044727) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6 + ... + 1445.

2^1044720 is an apocalyptic number.

1044720 is a gapful number since it is divisible by the number (10) 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 1044720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1755468).

1044720 is an abundant number, since it is smaller than the sum of its proper divisors (2466216).

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

1044720 is a wasteful number, since it uses less digits than its factorization.

1044720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1470 (or 1461 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 18.

The square root of 1044720 is about 1022.1154533613. The cubic root of 1044720 is about 101.4689819235.

It can be divided in two parts, 1044 and 720, that added together give a square (1764 = 42²).

The spelling of 1044720 in words is "one million, forty-four thousand, seven hundred twenty".