1154779340 has 192 divisors, whose sum is σ = 3048192000. Its totient is φ = 361221120.

The previous prime is 1154779303. The next prime is 1154779343. The reversal of 1154779340 is 439774511.

It is not an unprimeable number, because it can be changed into a prime (1154779343) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4292726 + ... + 4292994.

It is an arithmetic number, because the mean of its divisors is an integer number (15876000).

Almost surely, 2^1154779340 is an apocalyptic number.

1154779340 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 1154779340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1524096000).

1154779340 is an abundant number, since it is smaller than the sum of its proper divisors (1893412660).

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

1154779340 is a wasteful number, since it uses less digits than its factorization.

1154779340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400 (or 398 counting only the distinct ones).

The product of its (nonzero) digits is 105840, while the sum is 41.

The square root of 1154779340 is about 33982.0443764056. The cubic root of 1154779340 is about 1049.1389282201.

The spelling of 1154779340 in words is "one billion, one hundred fifty-four million, seven hundred seventy-nine thousand, three hundred forty".