1042826399 has 4 divisors (see below), whose sum is σ = 1078785960. Its totient is φ = 1006866840.

The previous prime is 1042826347. The next prime is 1042826401. The reversal of 1042826399 is 9936282401.

1042826399 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 1042826399 - 2¹² = 1042822303 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 (1042826299) 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, 17979737 + ... + 17979794.

It is an arithmetic number, because the mean of its divisors is an integer number (269696490).

Almost surely, 2^1042826399 is an apocalyptic number.

1042826399 is a deficient number, since it is larger than the sum of its proper divisors (35959561).

1042826399 is an equidigital number, since it uses as much as digits as its factorization.

1042826399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35959560.

The product of its (nonzero) digits is 186624, while the sum is 44.

The square root of 1042826399 is about 32292.8227165109. The cubic root of 1042826399 is about 1014.0763918058.

The spelling of 1042826399 in words is "one billion, forty-two million, eight hundred twenty-six thousand, three hundred ninety-nine".