1078660020 has 48 divisors (see below), whose sum is σ = 3179211840. Its totient is φ = 272503296.

The previous prime is 1078660019. The next prime is 1078660027. The reversal of 1078660020 is 200668701.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a self number, because there is not a number n which added to its sum of digits gives 1078660020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1078660027) 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, 471957 + ... + 474236.

It is an arithmetic number, because the mean of its divisors is an integer number (66233580).

Almost surely, 2^1078660020 is an apocalyptic number.

1078660020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1078660020 is an abundant number, since it is smaller than the sum of its proper divisors (2100551820).

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

1078660020 is a wasteful number, since it uses less digits than its factorization.

1078660020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 946224 (or 946222 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 1078660020 is about 32842.9599762263. The cubic root of 1078660020 is about 1025.5610713655.

The spelling of 1078660020 in words is "one billion, seventy-eight million, six hundred sixty thousand, twenty".