46436581 has 8 divisors (see below), whose sum is σ = 46913184. Its totient is φ = 45962640.

The previous prime is 46436567. The next prime is 46436597. The reversal of 46436581 is 18563464.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 46436581 - 2⁵ = 46436549 is a prime.

It is a super-2 number, since 2×46436581² = 4312712109939122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 46436581.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (46436501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56151 + ... + 56971.

It is an arithmetic number, because the mean of its divisors is an integer number (5864148).

Almost surely, 2^46436581 is an apocalyptic number.

It is an amenable number.

46436581 is a deficient number, since it is larger than the sum of its proper divisors (476603).

46436581 is a wasteful number, since it uses less digits than its factorization.

46436581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1331.

The product of its digits is 69120, while the sum is 37.

The square root of 46436581 is about 6814.4391552057. The cubic root of 46436581 is about 359.4347637067.

The spelling of 46436581 in words is "forty-six million, four hundred thirty-six thousand, five hundred eighty-one".