6990042 has 16 divisors (see below), whose sum is σ = 14172480. Its totient is φ = 2297952.

The previous prime is 6990041. The next prime is 6990059. The reversal of 6990042 is 2400996.

It is a junction number, because it is equal to n+sod(n) for n = 6989991 and 6990009.

It is not an unprimeable number, because it can be changed into a prime (6990041) 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, 7542 + ... + 8417.

It is an arithmetic number, because the mean of its divisors is an integer number (885780).

Almost surely, 2^6990042 is an apocalyptic number.

6990042 is an abundant number, since it is smaller than the sum of its proper divisors (7182438).

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

6990042 is a wasteful number, since it uses less digits than its factorization.

6990042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16037.

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 6990042 is about 2643.8687561980. The cubic root of 6990042 is about 191.2023658548.

The spelling of 6990042 in words is "six million, nine hundred ninety thousand, forty-two".