667452630 has 64 divisors (see below), whose sum is σ = 1780789248. Its totient is φ = 158993280.

The previous prime is 667452607. The next prime is 667452659. The reversal of 667452630 is 36254766.

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

It is a congruent number.

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, 15514 + ... + 39693.

It is an arithmetic number, because the mean of its divisors is an integer number (27824832).

Almost surely, 2^667452630 is an apocalyptic number.

667452630 is an abundant number, since it is smaller than the sum of its proper divisors (1113336618).

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

667452630 is a wasteful number, since it uses less digits than its factorization.

667452630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55261.

The product of its (nonzero) digits is 181440, while the sum is 39.

The square root of 667452630 is about 25835.1046059427. The cubic root of 667452630 is about 873.9236310206.

The spelling of 667452630 in words is "six hundred sixty-seven million, four hundred fifty-two thousand, six hundred thirty".