1040578645 has 8 divisors (see below), whose sum is σ = 1248930360. Its totient is φ = 832305600.

The previous prime is 1040578633. The next prime is 1040578657. The reversal of 1040578645 is 5468750401.

It is an interprime number because it is at equal distance from previous prime (1040578633) and next prime (1040578657).

It can be written as a sum of positive squares in 4 ways, for example, as 81 + 1040578564 = 9^2 + 32258^2 .

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

It is a de Polignac number, because none of the positive numbers 2^k-1040578645 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1040578598 and 1040578607.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14991 + ... + 48019.

It is an arithmetic number, because the mean of its divisors is an integer number (156116295).

Almost surely, 2^1040578645 is an apocalyptic number.

It is an amenable number.

1040578645 is a deficient number, since it is larger than the sum of its proper divisors (208351715).

1040578645 is an equidigital number, since it uses as much as digits as its factorization.

1040578645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39335.

The product of its (nonzero) digits is 134400, while the sum is 40.

The square root of 1040578645 is about 32258.0012555025. The cubic root of 1040578645 is about 1013.3472727071.

The spelling of 1040578645 in words is "one billion, forty million, five hundred seventy-eight thousand, six hundred forty-five".