46891138 has 12 divisors (see below), whose sum is σ = 81820422. Its totient is φ = 20096160.

The previous prime is 46891123. The next prime is 46891139. The reversal of 46891138 is 83119864.

It can be written as a sum of positive squares in only one way, i.e., 39778249 + 7112889 = 6307^2 + 2667^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 46891138.

It is not an unprimeable number, because it can be changed into a prime (46891139) 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, 239143 + ... + 239338.

Almost surely, 2^46891138 is an apocalyptic number.

46891138 is a deficient number, since it is larger than the sum of its proper divisors (34929284).

46891138 is a wasteful number, since it uses less digits than its factorization.

46891138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 478497 (or 478490 counting only the distinct ones).

The product of its digits is 41472, while the sum is 40.

The square root of 46891138 is about 6847.7104202792. The cubic root of 46891138 is about 360.6037656490.

The spelling of 46891138 in words is "forty-six million, eight hundred ninety-one thousand, one hundred thirty-eight".