660213342 has 20 divisors (see below), whose sum is σ = 1479367296. Its totient is φ = 220071060.

The previous prime is 660213341. The next prime is 660213347. The reversal of 660213342 is 243312066.

660213342 is a `hidden beast` number, since 6 + 602 + 13 + 3 + 42 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (660213341) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 2037534 + ... + 2037857.

Almost surely, 2^660213342 is an apocalyptic number.

660213342 is an abundant number, since it is smaller than the sum of its proper divisors (819153954).

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

660213342 is a wasteful number, since it uses less digits than its factorization.

660213342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4075405 (or 4075396 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 660213342 is about 25694.6169848862. The cubic root of 660213342 is about 870.7525711743.

The spelling of 660213342 in words is "six hundred sixty million, two hundred thirteen thousand, three hundred forty-two".