1670438534 has 16 divisors (see below), whose sum is σ = 2605378176. Its totient is φ = 802372800.

The previous prime is 1670438533. The next prime is 1670438537. The reversal of 1670438534 is 4358340761.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1670438491 and 1670438500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1670438533) 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, 89837 + ... + 106824.

It is an arithmetic number, because the mean of its divisors is an integer number (162836136).

Almost surely, 2^1670438534 is an apocalyptic number.

1670438534 is a deficient number, since it is larger than the sum of its proper divisors (934939642).

1670438534 is a wasteful number, since it uses less digits than its factorization.

1670438534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196831.

The product of its (nonzero) digits is 241920, while the sum is 41.

The square root of 1670438534 is about 40870.9986910034. The cubic root of 1670438534 is about 1186.5248362698.

The spelling of 1670438534 in words is "one billion, six hundred seventy million, four hundred thirty-eight thousand, five hundred thirty-four".