1040620903 has 8 divisors (see below), whose sum is σ = 1200396672. Its totient is φ = 883624056.

The previous prime is 1040620873. The next prime is 1040620909. The reversal of 1040620903 is 3090260401.

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

It is not a de Polignac number, because 1040620903 - 2⁵ = 1040620871 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1040620909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 693925 + ... + 695422.

It is an arithmetic number, because the mean of its divisors is an integer number (150049584).

Almost surely, 2^1040620903 is an apocalyptic number.

1040620903 is a deficient number, since it is larger than the sum of its proper divisors (159775769).

1040620903 is a wasteful number, since it uses less digits than its factorization.

1040620903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1389461.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 1040620903 is about 32258.6562491372. The cubic root of 1040620903 is about 1013.3609898985.

The spelling of 1040620903 in words is "one billion, forty million, six hundred twenty thousand, nine hundred three".