46361781 has 16 divisors (see below), whose sum is σ = 68790720. Its totient is φ = 30859920.

The previous prime is 46361779. The next prime is 46361801. The reversal of 46361781 is 18716364.

46361781 is a `hidden beast` number, since 4 + 636 + 17 + 8 + 1 = 666.

It is not a de Polignac number, because 46361781 - 2¹ = 46361779 is a prime.

It is a super-2 number, since 2×46361781² = 4298829474983922, which contains 22 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (46361761) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28726 + ... + 30296.

It is an arithmetic number, because the mean of its divisors is an integer number (4299420).

Almost surely, 2^46361781 is an apocalyptic number.

It is an amenable number.

46361781 is a deficient number, since it is larger than the sum of its proper divisors (22428939).

46361781 is a wasteful number, since it uses less digits than its factorization.

46361781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2673 (or 2667 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 46361781 is about 6808.9485972505. The cubic root of 46361781 is about 359.2416675993.

The spelling of 46361781 in words is "forty-six million, three hundred sixty-one thousand, seven hundred eighty-one".