667469532 has 12 divisors (see below), whose sum is σ = 1557428936. Its totient is φ = 222489840.

The previous prime is 667469519. The next prime is 667469549. The reversal of 667469532 is 235964766.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×667469532² = 891031152296598048, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27811219 + ... + 27811242.

Almost surely, 2^667469532 is an apocalyptic number.

It is an amenable number.

667469532 is an abundant number, since it is smaller than the sum of its proper divisors (889959404).

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

667469532 is a wasteful number, since it uses less digits than its factorization.

667469532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55622468 (or 55622466 counting only the distinct ones).

The product of its digits is 1632960, while the sum is 48.

The square root of 667469532 is about 25835.4317169270. The cubic root of 667469532 is about 873.9310077900.

The spelling of 667469532 in words is "six hundred sixty-seven million, four hundred sixty-nine thousand, five hundred thirty-two".