667400034 has 16 divisors (see below), whose sum is σ = 1525485888. Its totient is φ = 190685712.

The previous prime is 667400011. The next prime is 667400081. The reversal of 667400034 is 430004766.

It is a junction number, because it is equal to n+sod(n) for n = 667399974 and 667400010.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7945197 + ... + 7945280.

It is an arithmetic number, because the mean of its divisors is an integer number (95342868).

Almost surely, 2^667400034 is an apocalyptic number.

667400034 is an abundant number, since it is smaller than the sum of its proper divisors (858085854).

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

667400034 is a wasteful number, since it uses less digits than its factorization.

667400034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15890489.

The product of its (nonzero) digits is 12096, while the sum is 30.

The square root of 667400034 is about 25834.0866685858. The cubic root of 667400034 is about 873.9006750370.

The spelling of 667400034 in words is "six hundred sixty-seven million, four hundred thousand, thirty-four".