670045138 has 16 divisors (see below), whose sum is σ = 1149474240. Its totient is φ = 286955856.

The previous prime is 670045121. The next prime is 670045153. The reversal of 670045138 is 831540076.

670045138 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×670045138³ (a number of 27 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3873 + ... + 36811.

It is an arithmetic number, because the mean of its divisors is an integer number (71842140).

Almost surely, 2^670045138 is an apocalyptic number.

670045138 is a deficient number, since it is larger than the sum of its proper divisors (479429102).

670045138 is a wasteful number, since it uses less digits than its factorization.

670045138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34401.

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 670045138 is about 25885.2301129428. The cubic root of 670045138 is about 875.0536622327.

The spelling of 670045138 in words is "six hundred seventy million, forty-five thousand, one hundred thirty-eight".