667240344 has 48 divisors (see below), whose sum is σ = 1913413320. Its totient is φ = 209329920.

The previous prime is 667240319. The next prime is 667240363. The reversal of 667240344 is 443042766.

667240344 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×667240344² = 890419353322476672, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 667240299 and 667240308.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 271342 + ... + 273789.

Almost surely, 2^667240344 is an apocalyptic number.

It is an amenable number.

667240344 is an abundant number, since it is smaller than the sum of its proper divisors (1246172976).

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

667240344 is a wasteful number, since it uses less digits than its factorization.

667240344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 545160 (or 545153 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 36.

The square root of 667240344 is about 25830.9957996203. The cubic root of 667240344 is about 873.8309695513.

The spelling of 667240344 in words is "six hundred sixty-seven million, two hundred forty thousand, three hundred forty-four".