1078588720 has 80 divisors (see below), whose sum is σ = 2744565408. Its totient is φ = 390942720.

The previous prime is 1078588717. The next prime is 1078588723. The reversal of 1078588720 is 278858701.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1078588717) and next prime (1078588723).

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×1078588720² = 2326707253822476800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1078588723) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 294742 + ... + 298378.

Almost surely, 2^1078588720 is an apocalyptic number.

1078588720 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 1078588720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1372282704).

1078588720 is an abundant number, since it is smaller than the sum of its proper divisors (1665976688).

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

1078588720 is a wasteful number, since it uses less digits than its factorization.

1078588720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3998 (or 3992 counting only the distinct ones).

The product of its (nonzero) digits is 250880, while the sum is 46.

The square root of 1078588720 is about 32841.8744897425. The cubic root of 1078588720 is about 1025.5384741571.

The spelling of 1078588720 in words is "one billion, seventy-eight million, five hundred eighty-eight thousand, seven hundred twenty".