1042636741 has 4 divisors (see below), whose sum is σ = 1103968332. Its totient is φ = 981305152.

The previous prime is 1042636711. The next prime is 1042636747. The reversal of 1042636741 is 1476362401.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 754655841 + 287980900 = 27471^2 + 16970^2 .

It is a cyclic number.

It is not a de Polignac number, because 1042636741 - 2⁵ = 1042636709 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1042636697 and 1042636706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1042636747) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30665770 + ... + 30665803.

It is an arithmetic number, because the mean of its divisors is an integer number (275992083).

Almost surely, 2^1042636741 is an apocalyptic number.

It is an amenable number.

1042636741 is a deficient number, since it is larger than the sum of its proper divisors (61331591).

1042636741 is an equidigital number, since it uses as much as digits as its factorization.

1042636741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61331590.

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 1042636741 is about 32289.8860481111. The cubic root of 1042636741 is about 1014.0149116587.

The spelling of 1042636741 in words is "one billion, forty-two million, six hundred thirty-six thousand, seven hundred forty-one".