670043340 has 72 divisors (see below), whose sum is σ = 2107756560. Its totient is φ = 178676928.

The previous prime is 670043317. The next prime is 670043351. The reversal of 670043340 is 43340076.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 64075 + ... + 73794.

Almost surely, 2^670043340 is an apocalyptic number.

670043340 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

670043340 is an abundant number, since it is smaller than the sum of its proper divisors (1437713220).

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

670043340 is a wasteful number, since it uses less digits than its factorization.

670043340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137893 (or 137879 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 27.

The square root of 670043340 is about 25885.1953826893. The cubic root of 670043340 is about 875.0528795253.

The spelling of 670043340 in words is "six hundred seventy million, forty-three thousand, three hundred forty".