660374214 has 48 divisors (see below), whose sum is σ = 1445220144. Its totient is φ = 200463360.

The previous prime is 660374207. The next prime is 660374233. The reversal of 660374214 is 412473066.

It is a happy number.

It is a super-2 number, since 2×660374214² = 872188205032235592, 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 23 ways as a sum of consecutive naturals, for example, 94654 + ... + 101390.

It is an arithmetic number, because the mean of its divisors is an integer number (30108753).

Almost surely, 2^660374214 is an apocalyptic number.

660374214 is an abundant number, since it is smaller than the sum of its proper divisors (784845930).

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

660374214 is a wasteful number, since it uses less digits than its factorization.

660374214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6821 (or 6790 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 33.

The square root of 660374214 is about 25697.7472553529. The cubic root of 660374214 is about 870.8232898964.

The spelling of 660374214 in words is "six hundred sixty million, three hundred seventy-four thousand, two hundred fourteen".