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74080449 = 321921512
BaseRepresentation
bin1000110101001…
…10000011000001
312011101200021100
410122212003001
5122431033244
611203445013
71556446662
oct432460301
9164350240
1074080449
11388a8813
1220986769
1312469bb1
149ba5369
156784b69
hex46a60c1

74080449 has 27 divisors (see below), whose sum is σ = 113686209. Its totient is φ = 46477800.

The previous prime is 74080439. The next prime is 74080451. The reversal of 74080449 is 94408047.

The square root of 74080449 is 8607.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 74080449 - 221 = 71983297 is a prime.

It is not an unprimeable number, because it can be changed into a prime (74080439) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 490524 + ... + 490674.

Almost surely, 274080449 is an apocalyptic number.

74080449 is the 8607-th square number.

74080449 is the 4304-th centered octagonal number.

It is an amenable number.

74080449 is a deficient number, since it is larger than the sum of its proper divisors (39605760).

74080449 is a wasteful number, since it uses less digits than its factorization.

74080449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346 (or 173 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The cubic root of 74080449 is about 419.9857308077.

Multiplying 74080449 by its sum of digits (36), we get a square (2666896164 = 516422).

It can be divided in two parts, 74080 and 449, that added together give a square (74529 = 2732).

The spelling of 74080449 in words is "seventy-four million, eighty thousand, four hundred forty-nine".

Divisors: 1 3 9 19 57 151 171 361 453 1083 1359 2869 3249 8607 22801 25821 54511 68403 163533 205209 433219 490599 1299657 3898971 8231161 24693483 74080449