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405224 = 23373
BaseRepresentation
bin1100010111011101000
3202120212022
41202323220
5100431344
612404012
73305261
oct1427350
9676768
10405224
112574a6
12176608
131125a1
14a7968
15800ee
hex62ee8

405224 has 16 divisors (see below), whose sum is σ = 780900. Its totient is φ = 197136.

The previous prime is 405221. The next prime is 405227. The reversal of 405224 is 422504.

The cubic root of 405224 is 74.

It is a perfect power (a cube), and thus also a powerful number.

It is an interprime number because it is at equal distance from previous prime (405221) and next prime (405227).

It can be written as a sum of positive squares in 2 ways, for example, as 372100 + 33124 = 610^2 + 182^2 .

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (405221) 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, 10934 + ... + 10970.

2405224 is an apocalyptic number.

It is an amenable number.

405224 is a deficient number, since it is larger than the sum of its proper divisors (375676).

405224 is an frugal number, since it uses more digits than its factorization.

405224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117 (or 39 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 17.

The square root of 405224 is about 636.5720697612.

Adding to 405224 its reverse (422504), we get a palindrome (827728).

The spelling of 405224 in words is "four hundred five thousand, two hundred twenty-four".

Divisors: 1 2 4 8 37 74 148 296 1369 2738 5476 10952 50653 101306 202612 405224