1039945 has 8 divisors (see below), whose sum is σ = 1302336. Its totient is φ = 795696.

The previous prime is 1039943. The next prime is 1039949. The reversal of 1039945 is 5499301.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1039945 - 2¹ = 1039943 is a prime.

It is a super-4 number, since 4×1039945⁴ (a number of 25 digits) contains 4444 as substring.

It is a Duffinian number.

1039945 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1039943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4407 + ... + 4636.

It is an arithmetic number, because the mean of its divisors is an integer number (162792).

2^1039945 is an apocalyptic number.

It is an amenable number.

1039945 is a deficient number, since it is larger than the sum of its proper divisors (262391).

1039945 is an equidigital number, since it uses as much as digits as its factorization.

1039945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9071.

The product of its (nonzero) digits is 4860, while the sum is 31.

The square root of 1039945 is about 1019.7769363934. The cubic root of 1039945 is about 101.3141543324.

The spelling of 1039945 in words is "one million, thirty-nine thousand, nine hundred forty-five".