1155356442 has 24 divisors (see below), whose sum is σ = 2540637216. Its totient is φ = 379370376.

The previous prime is 1155356441. The next prime is 1155356513. The reversal of 1155356442 is 2446535511.

1155356442 is a `hidden beast` number, since 1 + 1 + 5 + 5 + 3 + 5 + 644 + 2 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 1155356397 and 1155356406.

It is not an unprimeable number, because it can be changed into a prime (1155356441) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 477798 + ... + 480209.

It is an arithmetic number, because the mean of its divisors is an integer number (105859884).

Almost surely, 2^1155356442 is an apocalyptic number.

1155356442 is an abundant number, since it is smaller than the sum of its proper divisors (1385280774).

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

1155356442 is a wasteful number, since it uses less digits than its factorization.

1155356442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 958082 (or 958079 counting only the distinct ones).

The product of its digits is 72000, while the sum is 36.

The square root of 1155356442 is about 33990.5345942073. The cubic root of 1155356442 is about 1049.3136684846.

The spelling of 1155356442 in words is "one billion, one hundred fifty-five million, three hundred fifty-six thousand, four hundred forty-two".