667013140 has 24 divisors (see below), whose sum is σ = 1421636832. Its totient is φ = 262822560.

The previous prime is 667013131. The next prime is 667013161. The reversal of 667013140 is 41310766.

It is a junction number, because it is equal to n+sod(n) for n = 667013099 and 667013108.

It is a congruent number.

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, 247546 + ... + 250225.

It is an arithmetic number, because the mean of its divisors is an integer number (59234868).

Almost surely, 2^667013140 is an apocalyptic number.

It is an amenable number.

667013140 is an abundant number, since it is smaller than the sum of its proper divisors (754623692).

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

667013140 is a wasteful number, since it uses less digits than its factorization.

667013140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 497847 (or 497845 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 667013140 is about 25826.5975304530. The cubic root of 667013140 is about 873.7317746947.

The spelling of 667013140 in words is "six hundred sixty-seven million, thirteen thousand, one hundred forty".