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45438 = 237573
BaseRepresentation
bin1011000101111110
32022022220
423011332
52423223
6550210
7246321
oct130576
968286
1045438
1131158
1222366
13178b3
14127b8
15d6e3
hexb17e

45438 has 8 divisors (see below), whose sum is σ = 90888. Its totient is φ = 15144.

The previous prime is 45433. The next prime is 45439. The reversal of 45438 is 83454.

It is a happy number.

45438 is nontrivially palindromic in base 9.

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

45438 is an admirable number.

It is a super-2 number, since 2×454382 = 4129223688, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a plaindrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45433) 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, 3781 + ... + 3792.

It is an arithmetic number, because the mean of its divisors is an integer number (11361).

245438 is an apocalyptic number.

45438 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45444).

45438 is a wasteful number, since it uses less digits than its factorization.

45438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7578.

The product of its digits is 1920, while the sum is 24.

The square root of 45438 is about 213.1619102936. The cubic root of 45438 is about 35.6839620702.

The spelling of 45438 in words is "forty-five thousand, four hundred thirty-eight".

Divisors: 1 2 3 6 7573 15146 22719 45438