667142034 has 24 divisors (see below), whose sum is σ = 1444818672. Its totient is φ = 205274160.

The previous prime is 667142029. The next prime is 667142039. The reversal of 667142034 is 430241766.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (667142029) and next prime (667142039).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 667141986 and 667142004.

It is not an unprimeable number, because it can be changed into a prime (667142039) 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, 327952 + ... + 329979.

It is an arithmetic number, because the mean of its divisors is an integer number (60200778).

Almost surely, 2^667142034 is an apocalyptic number.

667142034 is an abundant number, since it is smaller than the sum of its proper divisors (777676638).

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

667142034 is a wasteful number, since it uses less digits than its factorization.

667142034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 657962 (or 657949 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 33.

The square root of 667142034 is about 25829.0927831389. The cubic root of 667142034 is about 873.7880512122.

The spelling of 667142034 in words is "six hundred sixty-seven million, one hundred forty-two thousand, thirty-four".