842790429 has 24 divisors (see below), whose sum is σ = 1380011360. Its totient is φ = 491342112.

The previous prime is 842790409. The next prime is 842790439. The reversal of 842790429 is 924097248.

It is not a de Polignac number, because 842790429 - 2⁹ = 842789917 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (842790409) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 187339 + ... + 191784.

Almost surely, 2^842790429 is an apocalyptic number.

It is an amenable number.

842790429 is a deficient number, since it is larger than the sum of its proper divisors (537220931).

842790429 is a wasteful number, since it uses less digits than its factorization.

842790429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379161 (or 379158 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 842790429 is about 29030.8530532604. The cubic root of 842790429 is about 944.5824341456.

The spelling of 842790429 in words is "eight hundred forty-two million, seven hundred ninety thousand, four hundred twenty-nine".