1084722678 has 80 divisors (see below), whose sum is σ = 2630239920. Its totient is φ = 332144064.

The previous prime is 1084722677. The next prime is 1084722719. The reversal of 1084722678 is 8762274801.

1084722678 is a `hidden beast` number, since 108 + 472 + 2 + 6 + 78 = 666.

1084722678 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1084722671) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 476928 + ... + 479196.

It is an arithmetic number, because the mean of its divisors is an integer number (32877999).

Almost surely, 2^1084722678 is an apocalyptic number.

1084722678 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 1084722678, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1315119960).

1084722678 is an abundant number, since it is smaller than the sum of its proper divisors (1545517242).

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

1084722678 is a wasteful number, since it uses less digits than its factorization.

1084722678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2523 (or 2514 counting only the distinct ones).

The product of its (nonzero) digits is 301056, while the sum is 45.

The square root of 1084722678 is about 32935.1283282759. The cubic root of 1084722678 is about 1027.4788870935.

The spelling of 1084722678 in words is "one billion, eighty-four million, seven hundred twenty-two thousand, six hundred seventy-eight".