1172242528 has 24 divisors (see below), whose sum is σ = 2318033592. Its totient is φ = 583535616.

The previous prime is 1172242517. The next prime is 1172242529. The reversal of 1172242528 is 8252422711.

It is a junction number, because it is equal to n+sod(n) for n = 1172242493 and 1172242502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1172242529) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73425 + ... + 87952.

It is an arithmetic number, because the mean of its divisors is an integer number (96584733).

Almost surely, 2^1172242528 is an apocalyptic number.

It is an amenable number.

1172242528 is a deficient number, since it is larger than the sum of its proper divisors (1145791064).

1172242528 is a wasteful number, since it uses less digits than its factorization.

1172242528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161614 (or 161606 counting only the distinct ones).

The product of its digits is 17920, while the sum is 34.

The square root of 1172242528 is about 34238.0275132783. The cubic root of 1172242528 is about 1054.4010370387.

The spelling of 1172242528 in words is "one billion, one hundred seventy-two million, two hundred forty-two thousand, five hundred twenty-eight".