1040861723 has 12 divisors (see below), whose sum is σ = 1147156920. Its totient is φ = 943699680.

The previous prime is 1040861719. The next prime is 1040861761. The reversal of 1040861723 is 3271680401.

It is not a de Polignac number, because 1040861723 - 2² = 1040861719 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1040861723.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1040863723) 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, 34511 + ... + 57207.

It is an arithmetic number, because the mean of its divisors is an integer number (95596410).

Almost surely, 2^1040861723 is an apocalyptic number.

1040861723 is a deficient number, since it is larger than the sum of its proper divisors (106295197).

1040861723 is a wasteful number, since it uses less digits than its factorization.

1040861723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23098 (or 23087 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 1040861723 is about 32262.3886747401. The cubic root of 1040861723 is about 1013.4391543772.

The spelling of 1040861723 in words is "one billion, forty million, eight hundred sixty-one thousand, seven hundred twenty-three".