667402336 has 48 divisors (see below), whose sum is σ = 1352635200. Its totient is φ = 324016768.

The previous prime is 667402331. The next prime is 667402357. The reversal of 667402336 is 633204766.

It is a junction number, because it is equal to n+sod(n) for n = 667402295 and 667402304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (667402331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 154575 + ... + 158833.

It is an arithmetic number, because the mean of its divisors is an integer number (28179900).

Almost surely, 2^667402336 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 667402336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (676317600).

667402336 is an abundant number, since it is smaller than the sum of its proper divisors (685232864).

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

667402336 is a wasteful number, since it uses less digits than its factorization.

667402336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4411 (or 4403 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 37.

The square root of 667402336 is about 25834.1312220868. The cubic root of 667402336 is about 873.9016797903.

The spelling of 667402336 in words is "six hundred sixty-seven million, four hundred two thousand, three hundred thirty-six".