1074535778 has 4 divisors (see below), whose sum is σ = 1611803670. Its totient is φ = 537267888.

The previous prime is 1074535771. The next prime is 1074535783. The reversal of 1074535778 is 8775354701.

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

It can be written as a sum of positive squares in only one way, i.e., 980503969 + 94031809 = 31313^2 + 9697^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1074535771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 268633943 + ... + 268633946.

Almost surely, 2^1074535778 is an apocalyptic number.

1074535778 is a deficient number, since it is larger than the sum of its proper divisors (537267892).

1074535778 is an equidigital number, since it uses as much as digits as its factorization.

1074535778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 537267891.

The product of its (nonzero) digits is 823200, while the sum is 47.

The square root of 1074535778 is about 32780.1125379398. The cubic root of 1074535778 is about 1024.2523289966.

The spelling of 1074535778 in words is "one billion, seventy-four million, five hundred thirty-five thousand, seven hundred seventy-eight".