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1440492 = 223120041
BaseRepresentation
bin101011111101011101100
32201011222120
411133223230
5332043432
650512540
715146454
oct5375354
92634876
101440492
118a4299
12595750
133b5881
14296d64
151d6c2c
hex15faec

1440492 has 12 divisors (see below), whose sum is σ = 3361176. Its totient is φ = 480160.

The previous prime is 1440479. The next prime is 1440493. The reversal of 1440492 is 2940441.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (1440493) 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, 60009 + ... + 60032.

It is an arithmetic number, because the mean of its divisors is an integer number (280098).

21440492 is an apocalyptic number.

1440492 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1440492 is an abundant number, since it is smaller than the sum of its proper divisors (1920684).

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

1440492 is a wasteful number, since it uses less digits than its factorization.

1440492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120048 (or 120046 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 1440492 is about 1200.2049824926. The cubic root of 1440492 is about 112.9371828270.

The spelling of 1440492 in words is "one million, four hundred forty thousand, four hundred ninety-two".

Divisors: 1 2 3 4 6 12 120041 240082 360123 480164 720246 1440492