1085225772 has 48 divisors (see below), whose sum is σ = 2579683680. Its totient is φ = 355018752.

The previous prime is 1085225759. The next prime is 1085225777. The reversal of 1085225772 is 2775225801.

It is a self number, because there is not a number n which added to its sum of digits gives 1085225772.

It is not an unprimeable number, because it can be changed into a prime (1085225777) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 142608 + ... + 150024.

It is an arithmetic number, because the mean of its divisors is an integer number (53743410).

Almost surely, 2^1085225772 is an apocalyptic number.

1085225772 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1085225772 is an abundant number, since it is smaller than the sum of its proper divisors (1494457908).

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

1085225772 is a wasteful number, since it uses less digits than its factorization.

1085225772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7650 (or 7648 counting only the distinct ones).

The product of its (nonzero) digits is 78400, while the sum is 39.

The square root of 1085225772 is about 32942.7650934162. The cubic root of 1085225772 is about 1027.6377106585.

The spelling of 1085225772 in words is "one billion, eighty-five million, two hundred twenty-five thousand, seven hundred seventy-two".