667732260 has 96 divisors (see below), whose sum is σ = 2021910912. Its totient is φ = 163676160.

The previous prime is 667732259. The next prime is 667732309. The reversal of 667732260 is 62237766.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 198795 + ... + 202125.

It is an arithmetic number, because the mean of its divisors is an integer number (21061572).

Almost surely, 2^667732260 is an apocalyptic number.

667732260 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 667732260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1010955456).

667732260 is an abundant number, since it is smaller than the sum of its proper divisors (1354178652).

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

667732260 is a wasteful number, since it uses less digits than its factorization.

667732260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3613 (or 3611 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 39.

The square root of 667732260 is about 25840.5158617238. The cubic root of 667732260 is about 874.0456577307.

The spelling of 667732260 in words is "six hundred sixty-seven million, seven hundred thirty-two thousand, two hundred sixty".