1670905652 has 12 divisors (see below), whose sum is σ = 3149014596. Its totient is φ = 771187200.

The previous prime is 1670905651. The next prime is 1670905667. The reversal of 1670905652 is 2565090761.

It can be written as a sum of positive squares in 2 ways, for example, as 728784016 + 942121636 = 26996^2 + 30694^2 .

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1670905651) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16066349 + ... + 16066452.

It is an arithmetic number, because the mean of its divisors is an integer number (262417883).

Almost surely, 2^1670905652 is an apocalyptic number.

It is an amenable number.

1670905652 is a deficient number, since it is larger than the sum of its proper divisors (1478108944).

1670905652 is a wasteful number, since it uses less digits than its factorization.

1670905652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32132818 (or 32132816 counting only the distinct ones).

The product of its (nonzero) digits is 113400, while the sum is 41.

The square root of 1670905652 is about 40876.7128326141. The cubic root of 1670905652 is about 1186.6354250847.

The spelling of 1670905652 in words is "one billion, six hundred seventy million, nine hundred five thousand, six hundred fifty-two".