670965438 has 32 divisors (see below), whose sum is σ = 1576536192. Its totient is φ = 187682400.

The previous prime is 670965433. The next prime is 670965439. The reversal of 670965438 is 834569076.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (670965433) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 390148 + ... + 391863.

It is an arithmetic number, because the mean of its divisors is an integer number (49266756).

Almost surely, 2^670965438 is an apocalyptic number.

670965438 is an abundant number, since it is smaller than the sum of its proper divisors (905570754).

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

670965438 is a wasteful number, since it uses less digits than its factorization.

670965438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 782040.

The product of its (nonzero) digits is 1088640, while the sum is 48.

The square root of 670965438 is about 25903.0005597807. Note that the first 3 decimals coincide. The cubic root of 670965438 is about 875.4541046432.

The spelling of 670965438 in words is "six hundred seventy million, nine hundred sixty-five thousand, four hundred thirty-eight".