670746144 has 48 divisors (see below), whose sum is σ = 1762393248. Its totient is φ = 223368192.

The previous prime is 670746127. The next prime is 670746149. The reversal of 670746144 is 441647076.

It is a happy number.

670746144 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (670746149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121819 + ... + 127205.

It is an arithmetic number, because the mean of its divisors is an integer number (36716526).

Almost surely, 2^670746144 is an apocalyptic number.

It is an amenable number.

670746144 is an abundant number, since it is smaller than the sum of its proper divisors (1091647104).

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

670746144 is a wasteful number, since it uses less digits than its factorization.

670746144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6697 (or 6689 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 39.

The square root of 670746144 is about 25898.7672293490. The cubic root of 670746144 is about 875.3587183333.

The spelling of 670746144 in words is "six hundred seventy million, seven hundred forty-six thousand, one hundred forty-four".