1670646052 has 24 divisors (see below), whose sum is σ = 3030224120. Its totient is φ = 805282560.

The previous prime is 1670645989. The next prime is 1670646059. The reversal of 1670646052 is 2506460761.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 333573696 + 1337072356 = 18264^2 + 36566^2 .

It is a Harshad number since it is a multiple of its sum of digits (37).

It is not an unprimeable number, because it can be changed into a prime (1670646059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35649 + ... + 67912.

Almost surely, 2^1670646052 is an apocalyptic number.

It is an amenable number.

1670646052 is a deficient number, since it is larger than the sum of its proper divisors (1359578068).

1670646052 is a wasteful number, since it uses less digits than its factorization.

1670646052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103711 (or 103709 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 37.

The square root of 1670646052 is about 40873.5373071624. The cubic root of 1670646052 is about 1186.5739680917.

The spelling of 1670646052 in words is "one billion, six hundred seventy million, six hundred forty-six thousand, fifty-two".