670342380 has 48 divisors (see below), whose sum is σ = 1878100224. Its totient is φ = 178649280.

The previous prime is 670342349. The next prime is 670342381. The reversal of 670342380 is 83243076.

It is not an unprimeable number, because it can be changed into a prime (670342381) 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, 165459 + ... + 169461.

It is an arithmetic number, because the mean of its divisors is an integer number (39127088).

Almost surely, 2^670342380 is an apocalyptic number.

670342380 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

670342380 is an abundant number, since it is smaller than the sum of its proper divisors (1207757844).

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

670342380 is a wasteful number, since it uses less digits than its factorization.

670342380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6806 (or 6804 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 33.

The square root of 670342380 is about 25890.9710130771. The cubic root of 670342380 is about 875.1830387148.

The spelling of 670342380 in words is "six hundred seventy million, three hundred forty-two thousand, three hundred eighty".