660907434 has 16 divisors (see below), whose sum is σ = 1441980000. Its totient is φ = 200274960.

The previous prime is 660907421. The next prime is 660907447. The reversal of 660907434 is 434709066.

660907434 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (660907421) and next prime (660907447).

It is a junction number, because it is equal to n+sod(n) for n = 660907392 and 660907401.

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, 5006809 + ... + 5006940.

It is an arithmetic number, because the mean of its divisors is an integer number (90123750).

Almost surely, 2^660907434 is an apocalyptic number.

660907434 is an abundant number, since it is smaller than the sum of its proper divisors (781072566).

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

660907434 is a wasteful number, since it uses less digits than its factorization.

660907434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10013765.

The product of its (nonzero) digits is 108864, while the sum is 39.

The square root of 660907434 is about 25708.1200012759. The cubic root of 660907434 is about 871.0576092986.

The spelling of 660907434 in words is "six hundred sixty million, nine hundred seven thousand, four hundred thirty-four".