446813381 has 4 divisors (see below), whose sum is σ = 510643872. Its totient is φ = 382982892.

The previous prime is 446813347. The next prime is 446813399. The reversal of 446813381 is 183318644.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 446813381 - 2⁶ = 446813317 is a prime.

It is a super-2 number, since 2×446813381² = 399284394881302322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (446813321) 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, 31915235 + ... + 31915248.

It is an arithmetic number, because the mean of its divisors is an integer number (127660968).

Almost surely, 2^446813381 is an apocalyptic number.

It is an amenable number.

446813381 is a deficient number, since it is larger than the sum of its proper divisors (63830491).

446813381 is an equidigital number, since it uses as much as digits as its factorization.

446813381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63830490.

The product of its digits is 55296, while the sum is 38.

The square root of 446813381 is about 21137.9606632239. The cubic root of 446813381 is about 764.4963041933.

The spelling of 446813381 in words is "four hundred forty-six million, eight hundred thirteen thousand, three hundred eighty-one".