1285224306 has 16 divisors (see below), whose sum is σ = 2625139584. Its totient is φ = 419292944.

The previous prime is 1285224301. The next prime is 1285224359. The reversal of 1285224306 is 6034225821.

It is not an unprimeable number, because it can be changed into a prime (1285224301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2278485 + ... + 2279048.

It is an arithmetic number, because the mean of its divisors is an integer number (164071224).

Almost surely, 2^1285224306 is an apocalyptic number.

1285224306 is an abundant number, since it is smaller than the sum of its proper divisors (1339915278).

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

1285224306 is a wasteful number, since it uses less digits than its factorization.

1285224306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4557585.

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 1285224306 is about 35850.0251882757. The cubic root of 1285224306 is about 1087.2422235901.

The spelling of 1285224306 in words is "one billion, two hundred eighty-five million, two hundred twenty-four thousand, three hundred six".