447761145 has 32 divisors (see below), whose sum is σ = 782417664. Its totient is φ = 217324800.

The previous prime is 447761143. The next prime is 447761191. The reversal of 447761145 is 541167744.

It is not a de Polignac number, because 447761145 - 2¹ = 447761143 is a prime.

It is a super-2 number, since 2×447761145² = 400980085943422050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (447761141) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2326 + ... + 30015.

It is an arithmetic number, because the mean of its divisors is an integer number (24450552).

Almost surely, 2^447761145 is an apocalyptic number.

It is an amenable number.

447761145 is a deficient number, since it is larger than the sum of its proper divisors (334656519).

447761145 is a wasteful number, since it uses less digits than its factorization.

447761145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32433.

The product of its digits is 94080, while the sum is 39.

The square root of 447761145 is about 21160.3673172277. The cubic root of 447761145 is about 765.0364628696.

The spelling of 447761145 in words is "four hundred forty-seven million, seven hundred sixty-one thousand, one hundred forty-five".