1158077440 has 176 divisors, whose sum is σ = 3037289472. Its totient is φ = 421134336.

The previous prime is 1158077423. The next prime is 1158077443. The reversal of 1158077440 is 447708511.

It is a super-2 number, since 2×1158077440² = 2682286714073907200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1158077440.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1158077443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8453052 + ... + 8453188.

Almost surely, 2^1158077440 is an apocalyptic number.

1158077440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1158077440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1518644736).

1158077440 is an abundant number, since it is smaller than the sum of its proper divisors (1879212032).

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

1158077440 is a wasteful number, since it uses less digits than its factorization.

1158077440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302 (or 284 counting only the distinct ones).

The product of its (nonzero) digits is 31360, while the sum is 37.

The square root of 1158077440 is about 34030.5368749892. The cubic root of 1158077440 is about 1050.1367743219.

The spelling of 1158077440 in words is "one billion, one hundred fifty-eight million, seventy-seven thousand, four hundred forty".