46415881 has 4 divisors (see below), whose sum is σ = 46437700. Its totient is φ = 46394064.

The previous prime is 46415867. The next prime is 46415923. The reversal of 46415881 is 18851464.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3644281 + 42771600 = 1909^2 + 6540^2 .

It is a cyclic number.

It is not a de Polignac number, because 46415881 - 2⁵ = 46415849 is a prime.

It is a super-2 number, since 2×46415881² = 4308868018012322, 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 46415881.

It is not an unprimeable number, because it can be changed into a prime (46415801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7326 + ... + 12103.

It is an arithmetic number, because the mean of its divisors is an integer number (11609425).

Almost surely, 2^46415881 is an apocalyptic number.

It is an amenable number.

46415881 is a deficient number, since it is larger than the sum of its proper divisors (21819).

46415881 is a wasteful number, since it uses less digits than its factorization.

46415881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21818.

The product of its digits is 30720, while the sum is 37.

The square root of 46415881 is about 6812.9201521814. The cubic root of 46415881 is about 359.3813474468.

The spelling of 46415881 in words is "forty-six million, four hundred fifteen thousand, eight hundred eighty-one".