1302725028 has 192 divisors, whose sum is σ = 3695763456. Its totient is φ = 352512000.

The previous prime is 1302725023. The next prime is 1302725057. The reversal of 1302725028 is 8205272031.

It is a junction number, because it is equal to n+sod(n) for n = 1302724986 and 1302725004.

It is not an unprimeable number, because it can be changed into a prime (1302725023) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4243251 + ... + 4243557.

It is an arithmetic number, because the mean of its divisors is an integer number (19248768).

Almost surely, 2^1302725028 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1302725028, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1847881728).

1302725028 is an abundant number, since it is smaller than the sum of its proper divisors (2393038428).

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

1302725028 is a wasteful number, since it uses less digits than its factorization.

1302725028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 434 (or 432 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 1302725028 is about 36093.2823112557. The cubic root of 1302725028 is about 1092.1549344765.

Adding to 1302725028 its reverse (8205272031), we get a palindrome (9507997059).

The spelling of 1302725028 in words is "one billion, three hundred two million, seven hundred twenty-five thousand, twenty-eight".