1042804357 has 4 divisors (see below), whose sum is σ = 1191776416. Its totient is φ = 893832300.

The previous prime is 1042804351. The next prime is 1042804387. The reversal of 1042804357 is 7534082401.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1042804357 - 2¹⁹ = 1042280069 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 (1042804351) 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, 74486019 + ... + 74486032.

It is an arithmetic number, because the mean of its divisors is an integer number (297944104).

Almost surely, 2^1042804357 is an apocalyptic number.

It is an amenable number.

1042804357 is a deficient number, since it is larger than the sum of its proper divisors (148972059).

1042804357 is an equidigital number, since it uses as much as digits as its factorization.

1042804357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148972058.

The product of its (nonzero) digits is 26880, while the sum is 34.

The square root of 1042804357 is about 32292.4814314416. The cubic root of 1042804357 is about 1014.0692469830.

Adding to 1042804357 its reverse (7534082401), we get a palindrome (8576886758).

The spelling of 1042804357 in words is "one billion, forty-two million, eight hundred four thousand, three hundred fifty-seven".