1205302878 has 48 divisors (see below), whose sum is σ = 2903112576. Its totient is φ = 358896960.

The previous prime is 1205302877. The next prime is 1205302897. The reversal of 1205302878 is 8782035021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1205302877) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 75825 + ... + 90332.

It is an arithmetic number, because the mean of its divisors is an integer number (60481512).

Almost surely, 2^1205302878 is an apocalyptic number.

1205302878 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1205302878 is an abundant number, since it is smaller than the sum of its proper divisors (1697809698).

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

1205302878 is a wasteful number, since it uses less digits than its factorization.

1205302878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166209 (or 166206 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 1205302878 is about 34717.4722294121. The cubic root of 1205302878 is about 1064.2215881744.

Adding to 1205302878 its reverse (8782035021), we get a palindrome (9987337899).

The spelling of 1205302878 in words is "one billion, two hundred five million, three hundred two thousand, eight hundred seventy-eight".