670733136 has 100 divisors (see below), whose sum is σ = 2043544800. Its totient is φ = 211802688.

The previous prime is 670733111. The next prime is 670733137. The reversal of 670733136 is 631337076.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 670733136.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (670733137) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 11005 + ... + 38243.

It is an arithmetic number, because the mean of its divisors is an integer number (20435448).

Almost surely, 2^670733136 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 670733136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1021772400).

670733136 is an abundant number, since it is smaller than the sum of its proper divisors (1372811664).

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

670733136 is a wasteful number, since it uses less digits than its factorization.

670733136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27278 (or 27263 counting only the distinct ones).

The product of its (nonzero) digits is 47628, while the sum is 36.

The square root of 670733136 is about 25898.5160964871. The cubic root of 670733136 is about 875.3530595905.

The spelling of 670733136 in words is "six hundred seventy million, seven hundred thirty-three thousand, one hundred thirty-six".