4472145 has 32 divisors (see below), whose sum is σ = 8039040. Its totient is φ = 2358720.

The previous prime is 4472137. The next prime is 4472147. The reversal of 4472145 is 5412744.

4472145 is a `hidden beast` number, since 447 + 214 + 5 = 666.

It is not a de Polignac number, because 4472145 - 2³ = 4472137 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4472147) 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, 21090 + ... + 21300.

It is an arithmetic number, because the mean of its divisors is an integer number (251220).

Almost surely, 2^4472145 is an apocalyptic number.

4472145 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4472145 is a deficient number, since it is larger than the sum of its proper divisors (3566895).

4472145 is a wasteful number, since it uses less digits than its factorization.

4472145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 382 (or 376 counting only the distinct ones).

The product of its digits is 4480, while the sum is 27.

The square root of 4472145 is about 2114.7446654384. The cubic root of 4472145 is about 164.7550083177.

Adding to 4472145 its reverse (5412744), we get a palindrome (9884889).

The spelling of 4472145 in words is "four million, four hundred seventy-two thousand, one hundred forty-five".