670444992 has 224 divisors, whose sum is σ = 2306726400. Its totient is φ = 186955776.

The previous prime is 670444981. The next prime is 670445003. The reversal of 670444992 is 299444076.

It is an interprime number because it is at equal distance from previous prime (670444981) and next prime (670445003).

It is a tau number, because it is divible by the number of its divisors (224).

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, 519484 + ... + 520772.

Almost surely, 2^670444992 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 670444992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1153363200).

670444992 is an abundant number, since it is smaller than the sum of its proper divisors (1636281408).

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

670444992 is a wasteful number, since it uses less digits than its factorization.

670444992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1360 (or 1344 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 45.

The square root of 670444992 is about 25892.9525547011. The cubic root of 670444992 is about 875.2276923638.

The spelling of 670444992 in words is "six hundred seventy million, four hundred forty-four thousand, nine hundred ninety-two".