1156738386 has 16 divisors (see below), whose sum is σ = 2337328224. Its totient is φ = 381604224.

The previous prime is 1156738367. The next prime is 1156738393. The reversal of 1156738386 is 6838376511.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 993180 + ... + 994343.

It is an arithmetic number, because the mean of its divisors is an integer number (146083014).

Almost surely, 2^1156738386 is an apocalyptic number.

1156738386 is an abundant number, since it is smaller than the sum of its proper divisors (1180589838).

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

1156738386 is a wasteful number, since it uses less digits than its factorization.

1156738386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1987625.

The product of its digits is 725760, while the sum is 48.

The square root of 1156738386 is about 34010.8568842362. The cubic root of 1156738386 is about 1049.7318698576.

The spelling of 1156738386 in words is "one billion, one hundred fifty-six million, seven hundred thirty-eight thousand, three hundred eighty-six".