1185272742 has 32 divisors (see below), whose sum is σ = 2516908032. Its totient is φ = 370825344.

The previous prime is 1185272741. The next prime is 1185272789. The reversal of 1185272742 is 2472725811.

It is a self number, because there is not a number n which added to its sum of digits gives 1185272742.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1185272741) 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, 21603 + ... + 53265.

It is an arithmetic number, because the mean of its divisors is an integer number (78653376).

Almost surely, 2^1185272742 is an apocalyptic number.

1185272742 is an abundant number, since it is smaller than the sum of its proper divisors (1331635290).

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

1185272742 is a wasteful number, since it uses less digits than its factorization.

1185272742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32052.

The product of its digits is 62720, while the sum is 39.

The square root of 1185272742 is about 34427.7902572907. The cubic root of 1185272742 is about 1058.2934275458.

The spelling of 1185272742 in words is "one billion, one hundred eighty-five million, two hundred seventy-two thousand, seven hundred forty-two".