1078420128 has 48 divisors (see below), whose sum is σ = 2837683296. Its totient is φ = 358606080.

The previous prime is 1078420103. The next prime is 1078420153. The reversal of 1078420128 is 8210248701.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1078420103) and next prime (1078420153).

It is a tau number, because it is divible by the number of its divisors (48).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27075 + ... + 53757.

It is an arithmetic number, because the mean of its divisors is an integer number (59118402).

Almost surely, 2^1078420128 is an apocalyptic number.

It is an amenable number.

1078420128 is an abundant number, since it is smaller than the sum of its proper divisors (1759263168).

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

1078420128 is a wasteful number, since it uses less digits than its factorization.

1078420128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27117 (or 27109 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 33.

The square root of 1078420128 is about 32839.3076662709. The cubic root of 1078420128 is about 1025.4850380981.

Adding to 1078420128 its reverse (8210248701), we get a palindrome (9288668829).

The spelling of 1078420128 in words is "one billion, seventy-eight million, four hundred twenty thousand, one hundred twenty-eight".