1042435789 has 8 divisors (see below), whose sum is σ = 1050255360. Its totient is φ = 1034641200.

The previous prime is 1042435787. The next prime is 1042435841. The reversal of 1042435789 is 9875342401.

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 1042435789 - 2¹ = 1042435787 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1042435787) 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, 82132 + ... + 93970.

It is an arithmetic number, because the mean of its divisors is an integer number (131281920).

Almost surely, 2^1042435789 is an apocalyptic number.

It is an amenable number.

1042435789 is a deficient number, since it is larger than the sum of its proper divisors (7819571).

1042435789 is a wasteful number, since it uses less digits than its factorization.

1042435789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12491.

The product of its (nonzero) digits is 241920, while the sum is 43.

The square root of 1042435789 is about 32286.7742117419. The cubic root of 1042435789 is about 1013.9497622770.

The spelling of 1042435789 in words is "one billion, forty-two million, four hundred thirty-five thousand, seven hundred eighty-nine".