1071778290 has 32 divisors (see below), whose sum is σ = 2806111296. Its totient is φ = 259824960.

The previous prime is 1071778289. The next prime is 1071778291. The reversal of 1071778290 is 928771701.

It is an interprime number because it is at equal distance from previous prime (1071778289) and next prime (1071778291).

It is a super-2 number, since 2×1071778290² = 2297417405830648200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1071778291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1623577 + ... + 1624236.

It is an arithmetic number, because the mean of its divisors is an integer number (87690978).

Almost surely, 2^1071778290 is an apocalyptic number.

1071778290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1071778290 is an abundant number, since it is smaller than the sum of its proper divisors (1734333006).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1071778290 is a wasteful number, since it uses less digits than its factorization.

1071778290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3247834.

The product of its (nonzero) digits is 49392, while the sum is 42.

The square root of 1071778290 is about 32738.0251389726. The cubic root of 1071778290 is about 1023.3754284822.

The spelling of 1071778290 in words is "one billion, seventy-one million, seven hundred seventy-eight thousand, two hundred ninety".