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1389814 = 25711217
BaseRepresentation
bin101010011010011110110
32121121110121
411103103312
5323433224
645442154
714545636
oct5232366
92547417
101389814
1186a208
1257035a
1339879a
142826c6
151c6be4
hex1534f6

1389814 has 8 divisors (see below), whose sum is σ = 2090088. Its totient is φ = 693120.

The previous prime is 1389811. The next prime is 1389833. The reversal of 1389814 is 4189831.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1389814.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1389811) 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, 534 + ... + 1750.

It is an arithmetic number, because the mean of its divisors is an integer number (261261).

21389814 is an apocalyptic number.

1389814 is a deficient number, since it is larger than the sum of its proper divisors (700274).

1389814 is a wasteful number, since it uses less digits than its factorization.

1389814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1790.

The product of its digits is 6912, while the sum is 34.

The square root of 1389814 is about 1178.9037280457. The cubic root of 1389814 is about 111.5969248434.

The spelling of 1389814 in words is "one million, three hundred eighty-nine thousand, eight hundred fourteen".

Divisors: 1 2 571 1142 1217 2434 694907 1389814