1001667942 has 24 divisors (see below), whose sum is σ = 2367579240. Its totient is φ = 303535680.

The previous prime is 1001667911. The next prime is 1001667949. The reversal of 1001667942 is 2497661001.

It is a junction number, because it is equal to n+sod(n) for n = 1001667897 and 1001667906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001667949) 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, 2529267 + ... + 2529662.

It is an arithmetic number, because the mean of its divisors is an integer number (98649135).

Almost surely, 2^1001667942 is an apocalyptic number.

1001667942 is an abundant number, since it is smaller than the sum of its proper divisors (1365911298).

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

1001667942 is a wasteful number, since it uses less digits than its factorization.

1001667942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5058948 (or 5058945 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 1001667942 is about 31649.1380925295. The cubic root of 1001667942 is about 1000.5556718383. Note that the first 3 decimals are identical.

The spelling of 1001667942 in words is "one billion, one million, six hundred sixty-seven thousand, nine hundred forty-two".