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40286426 = 247428579
BaseRepresentation
bin1001100110101…
…1100011011010
32210210202120212
42121223203122
540303131201
63555251122
7666300065
oct231534332
983722525
1040286426
1120816874
12115a9aa2
13846702b
1454c98dc
15380babb
hex266b8da

40286426 has 8 divisors (see below), whose sum is σ = 61715520. Its totient is φ = 19714588.

The previous prime is 40286419. The next prime is 40286429. The reversal of 40286426 is 62468204.

It is a happy number.

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

It is a super-2 number, since 2×402864262 = 3245992239706952, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 40286392 and 40286401.

It is not an unprimeable number, because it can be changed into a prime (40286429) 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, 214196 + ... + 214383.

It is an arithmetic number, because the mean of its divisors is an integer number (7714440).

Almost surely, 240286426 is an apocalyptic number.

40286426 is a deficient number, since it is larger than the sum of its proper divisors (21429094).

40286426 is a wasteful number, since it uses less digits than its factorization.

40286426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 428628.

The product of its (nonzero) digits is 18432, while the sum is 32.

The square root of 40286426 is about 6347.1588919768. The cubic root of 40286426 is about 342.8095512480.

The spelling of 40286426 in words is "forty million, two hundred eighty-six thousand, four hundred twenty-six".

Divisors: 1 2 47 94 428579 857158 20143213 40286426