46185890 has 8 divisors (see below), whose sum is σ = 83134620. Its totient is φ = 18474352.

The previous prime is 46185857. The next prime is 46185899. The reversal of 46185890 is 9858164.

It can be written as a sum of positive squares in 2 ways, for example, as 45171841 + 1014049 = 6721^2 + 1007^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (46185899) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2309285 + ... + 2309304.

Almost surely, 2^46185890 is an apocalyptic number.

46185890 is a deficient number, since it is larger than the sum of its proper divisors (36948730).

46185890 is a wasteful number, since it uses less digits than its factorization.

46185890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4618596.

The product of its (nonzero) digits is 69120, while the sum is 41.

The square root of 46185890 is about 6796.0201588871. The cubic root of 46185890 is about 358.7867853517.

The spelling of 46185890 in words is "forty-six million, one hundred eighty-five thousand, eight hundred ninety".