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74404404 = 22322066789
BaseRepresentation
bin1000110111101…
…01001000110100
312012000010122200
410123311020310
5123021420104
611214424500
71562266314
oct433651064
9165003580
1074404404
1138aaa148
1220b02130
1312551499
149c4b444
1567eab39
hex46f5234

74404404 has 18 divisors (see below), whose sum is σ = 188077890. Its totient is φ = 24801456.

The previous prime is 74404403. The next prime is 74404417. The reversal of 74404404 is 40440447.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 69555600 + 4848804 = 8340^2 + 2202^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74404403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1033359 + ... + 1033430.

Almost surely, 274404404 is an apocalyptic number.

It is an amenable number.

74404404 is an abundant number, since it is smaller than the sum of its proper divisors (113673486).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

74404404 is a wasteful number, since it uses less digits than its factorization.

74404404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2066799 (or 2066794 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 27.

The square root of 74404404 is about 8625.7987456235. The cubic root of 74404404 is about 420.5970420419.

The spelling of 74404404 in words is "seventy-four million, four hundred four thousand, four hundred four".

Divisors: 1 2 3 4 6 9 12 18 36 2066789 4133578 6200367 8267156 12400734 18601101 24801468 37202202 74404404