46578164 has 12 divisors (see below), whose sum is σ = 86306724. Its totient is φ = 21919104.

The previous prime is 46578143. The next prime is 46578167. The reversal of 46578164 is 46187564.

It can be written as a sum of positive squares in 2 ways, for example, as 29702500 + 16875664 = 5450^2 + 4108^2 .

It is a super-2 number, since 2×46578164² = 4339050723221792, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (46578167) 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, 342419 + ... + 342554.

It is an arithmetic number, because the mean of its divisors is an integer number (7192227).

Almost surely, 2^46578164 is an apocalyptic number.

It is an amenable number.

46578164 is a deficient number, since it is larger than the sum of its proper divisors (39728560).

46578164 is a wasteful number, since it uses less digits than its factorization.

46578164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 684994 (or 684992 counting only the distinct ones).

The product of its digits is 161280, while the sum is 41.

The square root of 46578164 is about 6824.8197045783. The cubic root of 46578164 is about 359.7996930950.

It can be divided in two parts, 4657 and 8164, that added together give a palindrome (12821).

The spelling of 46578164 in words is "forty-six million, five hundred seventy-eight thousand, one hundred sixty-four".