667373340 has 24 divisors (see below), whose sum is σ = 1868645520. Its totient is φ = 177966208.

The previous prime is 667373339. The next prime is 667373411. The reversal of 667373340 is 43373766.

It is a super-3 number, since 3×667373340³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5561385 + ... + 5561504.

It is an arithmetic number, because the mean of its divisors is an integer number (77860230).

Almost surely, 2^667373340 is an apocalyptic number.

667373340 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

667373340 is an abundant number, since it is smaller than the sum of its proper divisors (1201272180).

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

667373340 is a wasteful number, since it uses less digits than its factorization.

667373340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11122901 (or 11122899 counting only the distinct ones).

The product of its (nonzero) digits is 190512, while the sum is 39.

The square root of 667373340 is about 25833.5700204211. The cubic root of 667373340 is about 873.8890237462.

The spelling of 667373340 in words is "six hundred sixty-seven million, three hundred seventy-three thousand, three hundred forty".