670673740 has 48 divisors (see below), whose sum is σ = 1553761440. Its totient is φ = 241134080.

The previous prime is 670673737. The next prime is 670673741. The reversal of 670673740 is 47376076.

It is a junction number, because it is equal to n+sod(n) for n = 670673693 and 670673702.

It is not an unprimeable number, because it can be changed into a prime (670673741) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2454 + ... + 36706.

It is an arithmetic number, because the mean of its divisors is an integer number (32370030).

Almost surely, 2^670673740 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 670673740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (776880720).

670673740 is an abundant number, since it is smaller than the sum of its proper divisors (883087700).

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

670673740 is a wasteful number, since it uses less digits than its factorization.

670673740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34362 (or 34360 counting only the distinct ones).

The product of its (nonzero) digits is 148176, while the sum is 40.

The square root of 670673740 is about 25897.3693644741. The cubic root of 670673740 is about 875.3272202006.

It can be divided in two parts, 67067 and 3740, that added together give a palindrome (70807).

The spelling of 670673740 in words is "six hundred seventy million, six hundred seventy-three thousand, seven hundred forty".