670224384 has 78 divisors (see below), whose sum is σ = 1936073906. Its totient is φ = 223395840.

The previous prime is 670224377. The next prime is 670224391. The reversal of 670224384 is 483422076.

It is an interprime number because it is at equal distance from previous prime (670224377) and next prime (670224391).

It can be written as a sum of positive squares in only one way, i.e., 661929984 + 8294400 = 25728^2 + 2880^2 .

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 27774 + ... + 45954.

Almost surely, 2^670224384 is an apocalyptic number.

670224384 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 670224384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (968036953).

670224384 is an abundant number, since it is smaller than the sum of its proper divisors (1265849522).

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

670224384 is a wasteful number, since it uses less digits than its factorization.

670224384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18211 (or 18186 counting only the distinct ones).

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

The square root of 670224384 is about 25888.6922033540. The cubic root of 670224384 is about 875.1316847795.

The spelling of 670224384 in words is "six hundred seventy million, two hundred twenty-four thousand, three hundred eighty-four".