670823424 has 176 divisors, whose sum is σ = 2092852800. Its totient is φ = 211673088.

The previous prime is 670823423. The next prime is 670823437. The reversal of 670823424 is 424328076.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (670823423) 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, 524674 + ... + 525950.

Almost surely, 2^670823424 is an apocalyptic number.

670823424 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 670823424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1046426400).

670823424 is an abundant number, since it is smaller than the sum of its proper divisors (1422029376).

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

670823424 is a wasteful number, since it uses less digits than its factorization.

670823424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1325 (or 1301 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 36.

The square root of 670823424 is about 25900.2591492827. The cubic root of 670823424 is about 875.3923351865.

The spelling of 670823424 in words is "six hundred seventy million, eight hundred twenty-three thousand, four hundred twenty-four".