1147780368 has 240 divisors, whose sum is σ = 3844503936. Its totient is φ = 324725760.

The previous prime is 1147780343. The next prime is 1147780393. The reversal of 1147780368 is 8630877411.

It is an interprime number because it is at equal distance from previous prime (1147780343) and next prime (1147780393).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4925980 + ... + 4926212.

Almost surely, 2^1147780368 is an apocalyptic number.

1147780368 is a gapful number since it is divisible by the number (18) 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 1147780368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1922251968).

1147780368 is an abundant number, since it is smaller than the sum of its proper divisors (2696723568).

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

1147780368 is a wasteful number, since it uses less digits than its factorization.

1147780368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444 (or 426 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 45.

The square root of 1147780368 is about 33878.9074203995. The cubic root of 1147780368 is about 1047.0150653410.

The spelling of 1147780368 in words is "one billion, one hundred forty-seven million, seven hundred eighty thousand, three hundred sixty-eight".