1051867842 has 16 divisors (see below), whose sum is σ = 2107874880. Its totient is φ = 349932752.

The previous prime is 1051867841. The next prime is 1051867867. The reversal of 1051867842 is 2487681501.

It is a super-2 number, since 2×1051867842² = 2212851914067473928, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1051867794 and 1051867803.

It is not an unprimeable number, because it can be changed into a prime (1051867841) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 169158 + ... + 175265.

It is an arithmetic number, because the mean of its divisors is an integer number (131742180).

Almost surely, 2^1051867842 is an apocalyptic number.

1051867842 is an abundant number, since it is smaller than the sum of its proper divisors (1056007038).

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

1051867842 is a wasteful number, since it uses less digits than its factorization.

1051867842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344937.

The product of its (nonzero) digits is 107520, while the sum is 42.

The square root of 1051867842 is about 32432.5121136183. The cubic root of 1051867842 is about 1016.9986879859.

The spelling of 1051867842 in words is "one billion, fifty-one million, eight hundred sixty-seven thousand, eight hundred forty-two".