667367340 has 48 divisors (see below), whose sum is σ = 1894959360. Its totient is φ = 175456960.

The previous prime is 667367303. The next prime is 667367341. The reversal of 667367340 is 43763766.

It is a junction number, because it is equal to n+sod(n) for n = 667367292 and 667367301.

It is not an unprimeable number, because it can be changed into a prime (667367341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74070 + ... + 82589.

It is an arithmetic number, because the mean of its divisors is an integer number (39478320).

Almost surely, 2^667367340 is an apocalyptic number.

667367340 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

667367340 is an abundant number, since it is smaller than the sum of its proper divisors (1227592020).

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

667367340 is a wasteful number, since it uses less digits than its factorization.

667367340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156742 (or 156740 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 42.

The square root of 667367340 is about 25833.4538921918. The cubic root of 667367340 is about 873.8864048474.

The spelling of 667367340 in words is "six hundred sixty-seven million, three hundred sixty-seven thousand, three hundred forty".