670495940 has 24 divisors (see below), whose sum is σ = 1482149760. Its totient is φ = 254082528.

The previous prime is 670495909. The next prime is 670495949. The reversal of 670495940 is 49594076.

It is a junction number, because it is equal to n+sod(n) for n = 670495891 and 670495900.

It is not an unprimeable number, because it can be changed into a prime (670495949) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 881852 + ... + 882611.

It is an arithmetic number, because the mean of its divisors is an integer number (61756240).

Almost surely, 2^670495940 is an apocalyptic number.

It is an amenable number.

670495940 is an abundant number, since it is smaller than the sum of its proper divisors (811653820).

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

670495940 is a wasteful number, since it uses less digits than its factorization.

670495940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1764491 (or 1764489 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 44.

The square root of 670495940 is about 25893.9363558344. The cubic root of 670495940 is about 875.2498617049.

The spelling of 670495940 in words is "six hundred seventy million, four hundred ninety-five thousand, nine hundred forty".