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1438494 = 231971217
BaseRepresentation
bin101011111001100011110
32201002020120
411133030132
5332012434
650455410
715140601
oct5371436
92632216
101438494
118a2842
12594566
133b49a5
14296338
151d6349
hex15f31e

1438494 has 16 divisors (see below), whose sum is σ = 2893968. Its totient is φ = 476672.

The previous prime is 1438483. The next prime is 1438501. The reversal of 1438494 is 4948341.

It is a happy number.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 574 + ... + 1790.

It is an arithmetic number, because the mean of its divisors is an integer number (180873).

21438494 is an apocalyptic number.

1438494 is an abundant number, since it is smaller than the sum of its proper divisors (1455474).

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

1438494 is a wasteful number, since it uses less digits than its factorization.

1438494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1419.

The product of its digits is 13824, while the sum is 33.

The square root of 1438494 is about 1199.3723358490. The cubic root of 1438494 is about 112.8849430602.

The spelling of 1438494 in words is "one million, four hundred thirty-eight thousand, four hundred ninety-four".

Divisors: 1 2 3 6 197 394 591 1182 1217 2434 3651 7302 239749 479498 719247 1438494