1867036842 has 48 divisors (see below), whose sum is σ = 4436190720. Its totient is φ = 562795200.

The previous prime is 1867036841. The next prime is 1867036859. The reversal of 1867036842 is 2486307681.

1867036842 is a `hidden beast` number, since 186 + 70 + 368 + 42 = 666.

It is not an unprimeable number, because it can be changed into a prime (1867036841) 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, 13134 + ... + 62502.

It is an arithmetic number, because the mean of its divisors is an integer number (92420640).

Almost surely, 2^1867036842 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1867036842, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2218095360).

1867036842 is an abundant number, since it is smaller than the sum of its proper divisors (2569153878).

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

1867036842 is a wasteful number, since it uses less digits than its factorization.

1867036842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49579 (or 49576 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 45.

The square root of 1867036842 is about 43209.2217240718. The cubic root of 1867036842 is about 1231.3578856670.

The spelling of 1867036842 in words is "one billion, eight hundred sixty-seven million, thirty-six thousand, eight hundred forty-two".