940660138 has 32 divisors (see below), whose sum is σ = 1578595392. Its totient is φ = 416774400.

The previous prime is 940660129. The next prime is 940660157. The reversal of 940660138 is 831066049.

It is a junction number, because it is equal to n+sod(n) for n = 940660097 and 940660106.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 148545 + ... + 154747.

It is an arithmetic number, because the mean of its divisors is an integer number (49331106).

Almost surely, 2^940660138 is an apocalyptic number.

940660138 is a deficient number, since it is larger than the sum of its proper divisors (637935254).

940660138 is a wasteful number, since it uses less digits than its factorization.

940660138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6390.

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 940660138 is about 30670.1832077997. The cubic root of 940660138 is about 979.8153678275.

The spelling of 940660138 in words is "nine hundred forty million, six hundred sixty thousand, one hundred thirty-eight".