670071840 has 48 divisors (see below), whose sum is σ = 2110727808. Its totient is φ = 178685696.

The previous prime is 670071827. The next prime is 670071863. The reversal of 670071840 is 48170076.

It is a tau number, because it is divible by the number of its divisors (48).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 697512 + ... + 698471.

It is an arithmetic number, because the mean of its divisors is an integer number (43973496).

Almost surely, 2^670071840 is an apocalyptic number.

670071840 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

670071840 is an abundant number, since it is smaller than the sum of its proper divisors (1440655968).

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

670071840 is a wasteful number, since it uses less digits than its factorization.

670071840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1396001 (or 1395993 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 33.

The square root of 670071840 is about 25885.7458845597. The cubic root of 670071840 is about 875.0652860131.

The spelling of 670071840 in words is "six hundred seventy million, seventy-one thousand, eight hundred forty".