1158023378 has 8 divisors (see below), whose sum is σ = 1754233740. Its totient is φ = 573278800.

The previous prime is 1158023371. The next prime is 1158023407. The reversal of 1158023378 is 8733208511.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1154844289 + 3179089 = 33983^2 + 1783^2 .

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

It is not an unprimeable number, because it can be changed into a prime (1158023371) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2866193 + ... + 2866596.

Almost surely, 2^1158023378 is an apocalyptic number.

1158023378 is a deficient number, since it is larger than the sum of its proper divisors (596210362).

1158023378 is a wasteful number, since it uses less digits than its factorization.

1158023378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5732892.

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 1158023378 is about 34029.7425497167. The cubic root of 1158023378 is about 1050.1204330492.

The spelling of 1158023378 in words is "one billion, one hundred fifty-eight million, twenty-three thousand, three hundred seventy-eight".