1042868729 has 16 divisors (see below), whose sum is σ = 1209882240. Its totient is φ = 880398720.

The previous prime is 1042868711. The next prime is 1042868777. The reversal of 1042868729 is 9278682401.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1042868729 - 2⁸ = 1042868473 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1042865729) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 642539 + ... + 644159.

It is an arithmetic number, because the mean of its divisors is an integer number (75617640).

Almost surely, 2^1042868729 is an apocalyptic number.

It is an amenable number.

1042868729 is a deficient number, since it is larger than the sum of its proper divisors (167013511).

1042868729 is a wasteful number, since it uses less digits than its factorization.

1042868729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2960.

The product of its (nonzero) digits is 387072, while the sum is 47.

The square root of 1042868729 is about 32293.4781186542. The cubic root of 1042868729 is about 1014.0901126171.

The spelling of 1042868729 in words is "one billion, forty-two million, eight hundred sixty-eight thousand, seven hundred twenty-nine".