1061786838 has 16 divisors (see below), whose sum is σ = 2426941440. Its totient is φ = 303367656.

The previous prime is 1061786837. The next prime is 1061786893. The reversal of 1061786838 is 8386871601.

It is a super-2 number, since 2×1061786838² = 2254782578700076488, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1061786837) 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 7 ways as a sum of consecutive naturals, for example, 12640278 + ... + 12640361.

It is an arithmetic number, because the mean of its divisors is an integer number (151683840).

Almost surely, 2^1061786838 is an apocalyptic number.

1061786838 is an abundant number, since it is smaller than the sum of its proper divisors (1365154602).

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

1061786838 is a wasteful number, since it uses less digits than its factorization.

1061786838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25280651.

The product of its (nonzero) digits is 387072, while the sum is 48.

The square root of 1061786838 is about 32585.0707840262. The cubic root of 1061786838 is about 1020.1854199632.

The spelling of 1061786838 in words is "one billion, sixty-one million, seven hundred eighty-six thousand, eight hundred thirty-eight".