1100078064 has 80 divisors (see below), whose sum is σ = 3182653440. Its totient is φ = 363787200.

The previous prime is 1100078051. The next prime is 1100078071. The reversal of 1100078064 is 4608700011.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44839 + ... + 64889.

It is an arithmetic number, because the mean of its divisors is an integer number (39783168).

Almost surely, 2^1100078064 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1100078064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1591326720).

1100078064 is an abundant number, since it is smaller than the sum of its proper divisors (2082575376).

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

1100078064 is a wasteful number, since it uses less digits than its factorization.

1100078064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20195 (or 20183 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The square root of 1100078064 is about 33167.4247417553. The cubic root of 1100078064 is about 1032.3045342469.

Adding to 1100078064 its reverse (4608700011), we get a palindrome (5708778075).

The spelling of 1100078064 in words is "one billion, one hundred million, seventy-eight thousand, sixty-four".