1285028604 has 48 divisors (see below), whose sum is σ = 3335959200. Its totient is φ = 427776768.

The previous prime is 1285028587. The next prime is 1285028663. The reversal of 1285028604 is 4068205821.

1285028604 is a `hidden beast` number, since 1 + 28 + 5 + 0 + 28 + 604 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78612 + ... + 93540.

It is an arithmetic number, because the mean of its divisors is an integer number (69499150).

Almost surely, 2^1285028604 is an apocalyptic number.

It is an amenable number.

1285028604 is an abundant number, since it is smaller than the sum of its proper divisors (2050930596).

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

1285028604 is a wasteful number, since it uses less digits than its factorization.

1285028604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15739 (or 15731 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 36.

The square root of 1285028604 is about 35847.2956302146. The cubic root of 1285028604 is about 1087.1870357454.

The spelling of 1285028604 in words is "one billion, two hundred eighty-five million, twenty-eight thousand, six hundred four".