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4404481 = 22719403
BaseRepresentation
bin10000110011010100000001
322021202210221
4100303110001
52111420411
6234223041
752303024
oct20632401
98252727
104404481
112539174
121584a81
13bb2a03
148291bb
155c0071
hex433501

4404481 has 4 divisors (see below), whose sum is σ = 4424112. Its totient is φ = 4384852.

The previous prime is 4404469. The next prime is 4404503. The reversal of 4404481 is 1844044.

It is a happy number.

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 4404481 - 219 = 3880193 is a prime.

It is a super-3 number, since 3×44044813 (a number of 21 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an Ulam number.

It is a Duffinian number.

4404481 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (4404451) 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, 9475 + ... + 9928.

It is an arithmetic number, because the mean of its divisors is an integer number (1106028).

Almost surely, 24404481 is an apocalyptic number.

It is an amenable number.

4404481 is a deficient number, since it is larger than the sum of its proper divisors (19631).

4404481 is a wasteful number, since it uses less digits than its factorization.

4404481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19630.

The product of its (nonzero) digits is 2048, while the sum is 25.

The square root of 4404481 is about 2098.6855409994. The cubic root of 4404481 is about 163.9198621958.

The spelling of 4404481 in words is "four million, four hundred four thousand, four hundred eighty-one".

Divisors: 1 227 19403 4404481