667260432 has 30 divisors (see below), whose sum is σ = 1867402862. Its totient is φ = 222420096.

The previous prime is 667260403. The next prime is 667260443. The reversal of 667260432 is 234062766.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 568536336 + 98724096 = 23844^2 + 9936^2 .

It is a super-2 number, since 2×667260432² = 890472968225653248, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

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

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 2316733 + ... + 2317020.

Almost surely, 2^667260432 is an apocalyptic number.

It is an amenable number.

667260432 is an abundant number, since it is smaller than the sum of its proper divisors (1200142430).

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

667260432 is a wasteful number, since it uses less digits than its factorization.

667260432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4633767 (or 4633758 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 36.

The square root of 667260432 is about 25831.3846318776. The cubic root of 667260432 is about 873.8397386755.

It can be divided in two parts, 6672 and 60432, that multiplied together give a palindrome (403202304).

The spelling of 667260432 in words is "six hundred sixty-seven million, two hundred sixty thousand, four hundred thirty-two".