46678138 has 12 divisors (see below), whose sum is σ = 75817998. Its totient is φ = 21543600.

The previous prime is 46678133. The next prime is 46678183. The reversal of 46678138 is 83187664.

It can be written as a sum of positive squares in 3 ways, for example, as 11785489 + 34892649 = 3433^2 + 5907^2 .

It is a junction number, because it is equal to n+sod(n) for n = 46678094 and 46678103.

It is not an unprimeable number, because it can be changed into a prime (46678133) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 68713 + ... + 69388.

Almost surely, 2^46678138 is an apocalyptic number.

46678138 is a deficient number, since it is larger than the sum of its proper divisors (29139860).

46678138 is a wasteful number, since it uses less digits than its factorization.

46678138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138129 (or 138116 counting only the distinct ones).

The product of its digits is 193536, while the sum is 43.

The square root of 46678138 is about 6832.1400746765. The cubic root of 46678138 is about 360.0569302970.

The spelling of 46678138 in words is "forty-six million, six hundred seventy-eight thousand, one hundred thirty-eight".