1045778 has 8 divisors (see below), whose sum is σ = 1573068. Its totient is φ = 521424.

The previous prime is 1045763. The next prime is 1045799. The reversal of 1045778 is 8775401.

It can be written as a sum of positive squares in 2 ways, for example, as 677329 + 368449 = 823^2 + 607^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 800 + ... + 1652.

2^1045778 is an apocalyptic number.

1045778 is a deficient number, since it is larger than the sum of its proper divisors (527290).

1045778 is an equidigital number, since it uses as much as digits as its factorization.

1045778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1468.

The product of its (nonzero) digits is 7840, while the sum is 32.

The square root of 1045778 is about 1022.6328764518. The cubic root of 1045778 is about 101.5032233035.

The spelling of 1045778 in words is "one million, forty-five thousand, seven hundred seventy-eight".