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1440074 = 23123227
BaseRepresentation
bin101011111100101001010
32201011102002
411133211022
5332040244
650511002
715145316
oct5374512
92634362
101440074
118a3a49
12595462
133b561c
14296b46
151d6a4e
hex15f94a

1440074 has 8 divisors (see below), whose sum is σ = 2229888. Its totient is φ = 696780.

The previous prime is 1440037. The next prime is 1440079. The reversal of 1440074 is 4700441.

1440074 is nontrivially palindromic in base 9.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×14400743 = 8959333088570175672, which contains 333 as substring.

It is an Ulam number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1440079) 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, 11552 + ... + 11675.

It is an arithmetic number, because the mean of its divisors is an integer number (278736).

21440074 is an apocalyptic number.

1440074 is a deficient number, since it is larger than the sum of its proper divisors (789814).

1440074 is a wasteful number, since it uses less digits than its factorization.

1440074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23260.

The product of its (nonzero) digits is 448, while the sum is 20.

The square root of 1440074 is about 1200.0308329372. The cubic root of 1440074 is about 112.9262577844.

The spelling of 1440074 in words is "one million, four hundred forty thousand, seventy-four".

Divisors: 1 2 31 62 23227 46454 720037 1440074