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1328438 = 26431033
BaseRepresentation
bin101000100010100110110
32111111021102
411010110312
5320002223
644250102
714201666
oct5042466
92444242
101328438
11828091
12540932
13376877
142681a6
151b3928
hex144536

1328438 has 8 divisors (see below), whose sum is σ = 1997688. Its totient is φ = 662544.

The previous prime is 1328417. The next prime is 1328447. The reversal of 1328438 is 8348231.

It is a happy number.

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

It is an Ulam number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1328438.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 770 + ... + 1802.

It is an arithmetic number, because the mean of its divisors is an integer number (249711).

21328438 is an apocalyptic number.

1328438 is a deficient number, since it is larger than the sum of its proper divisors (669250).

1328438 is a wasteful number, since it uses less digits than its factorization.

1328438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1678.

The product of its digits is 4608, while the sum is 29.

The square root of 1328438 is about 1152.5788476282. The cubic root of 1328438 is about 109.9293761543.

The spelling of 1328438 in words is "one million, three hundred twenty-eight thousand, four hundred thirty-eight".

Divisors: 1 2 643 1033 1286 2066 664219 1328438