46394181 has 16 divisors (see below), whose sum is σ = 72350400. Its totient is φ = 29301264.

The previous prime is 46394149. The next prime is 46394191. The reversal of 46394181 is 18149364.

46394181 is a `hidden beast` number, since 4 + 639 + 4 + 18 + 1 = 666.

It is not a de Polignac number, because 46394181 - 2⁵ = 46394149 is a prime.

It is a super-2 number, since 2×46394181² = 4304840061321522, which contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (46394111) 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, 44706 + ... + 45731.

It is an arithmetic number, because the mean of its divisors is an integer number (4521900).

Almost surely, 2^46394181 is an apocalyptic number.

It is an amenable number.

46394181 is a deficient number, since it is larger than the sum of its proper divisors (25956219).

46394181 is a wasteful number, since it uses less digits than its factorization.

46394181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90465 (or 90459 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 46394181 is about 6811.3274036710. The cubic root of 46394181 is about 359.3253336379.

The spelling of 46394181 in words is "forty-six million, three hundred ninety-four thousand, one hundred eighty-one".