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74244960 = 25325471097
BaseRepresentation
bin1000110110011…
…10001101100000
312011201000221100
410123032031200
5123001314320
611211154400
71561033416
oct433161540
9164630840
1074244960
1138a00379
1220a45a00
13124c6a3a
149c092b6
1567b8790
hex46ce360

74244960 has 144 divisors (see below), whose sum is σ = 258987456. Its totient is φ = 19359744.

The previous prime is 74244953. The next prime is 74244971. The reversal of 74244960 is 6944247.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 67132 + ... + 68228.

It is an arithmetic number, because the mean of its divisors is an integer number (1798524).

Almost surely, 274244960 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74244960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (129493728).

74244960 is an abundant number, since it is smaller than the sum of its proper divisors (184742496).

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

74244960 is a wasteful number, since it uses less digits than its factorization.

74244960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1165 (or 1154 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The square root of 74244960 is about 8616.5515143821. The cubic root of 74244960 is about 420.2963894315.

The spelling of 74244960 in words is "seventy-four million, two hundred forty-four thousand, nine hundred sixty".