1042786 has 4 divisors (see below), whose sum is σ = 1564182. Its totient is φ = 521392.

The previous prime is 1042781. The next prime is 1042799. The reversal of 1042786 is 6872401.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6872401 = 751 ⋅9151.

It can be written as a sum of positive squares in only one way, i.e., 1010025 + 32761 = 1005^2 + 181^2 .

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (1042781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260695 + ... + 260698.

2^1042786 is an apocalyptic number.

1042786 is a deficient number, since it is larger than the sum of its proper divisors (521396).

1042786 is an equidigital number, since it uses as much as digits as its factorization.

1042786 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 521395.

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 1042786 is about 1021.1689380313. The cubic root of 1042786 is about 101.4063296561.

The spelling of 1042786 in words is "one million, forty-two thousand, seven hundred eighty-six".