1018542042 has 48 divisors (see below), whose sum is σ = 2524167360. Its totient is φ = 290774016.

The previous prime is 1018542017. The next prime is 1018542043. The reversal of 1018542042 is 2402458101.

It is a junction number, because it is equal to n+sod(n) for n = 1018541997 and 1018542015.

It is not an unprimeable number, because it can be changed into a prime (1018542043) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 201498 + ... + 206490.

It is an arithmetic number, because the mean of its divisors is an integer number (52586820).

Almost surely, 2^1018542042 is an apocalyptic number.

1018542042 is an abundant number, since it is smaller than the sum of its proper divisors (1505625318).

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

1018542042 is a wasteful number, since it uses less digits than its factorization.

1018542042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6627 (or 6624 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 27.

The square root of 1018542042 is about 31914.6054652098. The cubic root of 1018542042 is about 1006.1428685657.

The spelling of 1018542042 in words is "one billion, eighteen million, five hundred forty-two thousand, forty-two".