1014440778 has 96 divisors (see below), whose sum is σ = 2482159680. Its totient is φ = 297319680.

The previous prime is 1014440771. The next prime is 1014440789. The reversal of 1014440778 is 8770444101.

It is not an unprimeable number, because it can be changed into a prime (1014440771) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 411313 + ... + 413771.

It is an arithmetic number, because the mean of its divisors is an integer number (25855830).

Almost surely, 2^1014440778 is an apocalyptic number.

1014440778 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1014440778, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1241079840).

1014440778 is an abundant number, since it is smaller than the sum of its proper divisors (1467718902).

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

1014440778 is a wasteful number, since it uses less digits than its factorization.

1014440778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2564 (or 2561 counting only the distinct ones).

The product of its (nonzero) digits is 25088, while the sum is 36.

The square root of 1014440778 is about 31850.2869374830. The cubic root of 1014440778 is about 1004.7906061118.

Adding to 1014440778 its reverse (8770444101), we get a palindrome (9784884879).

The spelling of 1014440778 in words is "one billion, fourteen million, four hundred forty thousand, seven hundred seventy-eight".