1072440723 has 8 divisors (see below), whose sum is σ = 1430247888. Its totient is φ = 714797024.

The previous prime is 1072440709. The next prime is 1072440791. The reversal of 1072440723 is 3270442701.

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 1072440723 - 2²² = 1068246419 is a prime.

It is a super-3 number, since 3×1072440723³ (a number of 28 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (1072440823) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24636 + ... + 52457.

It is an arithmetic number, because the mean of its divisors is an integer number (178780986).

Almost surely, 2^1072440723 is an apocalyptic number.

1072440723 is a deficient number, since it is larger than the sum of its proper divisors (357807165).

1072440723 is an equidigital number, since it uses as much as digits as its factorization.

1072440723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81733.

The product of its (nonzero) digits is 9408, while the sum is 30.

The square root of 1072440723 is about 32748.1407563849. The cubic root of 1072440723 is about 1023.5862239557.

The spelling of 1072440723 in words is "one billion, seventy-two million, four hundred forty thousand, seven hundred twenty-three".