10720044 has 18 divisors (see below), whose sum is σ = 27097980. Its totient is φ = 3573336.

The previous prime is 10720043. The next prime is 10720069. The reversal of 10720044 is 44002701.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×10720044² = 229838686723872, which contains 22 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 10719999 and 10720026.

It is not an unprimeable number, because it can be changed into a prime (10720043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 148854 + ... + 148925.

Almost surely, 2^10720044 is an apocalyptic number.

It is an amenable number.

10720044 is an abundant number, since it is smaller than the sum of its proper divisors (16377936).

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

10720044 is a wasteful number, since it uses less digits than its factorization.

10720044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297789 (or 297784 counting only the distinct ones).

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

The square root of 10720044 is about 3274.1478280615. The cubic root of 10720044 is about 220.4950559615.

Adding to 10720044 its reverse (44002701), we get a palindrome (54722745).

The spelling of 10720044 in words is "ten million, seven hundred twenty thousand, forty-four".