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40020067 is a prime number
BaseRepresentation
bin1001100010101…
…0100001100011
32210022020012201
42120222201203
540221120232
63545434031
7664110403
oct230524143
983266181
1040020067
112065473a
121149b917
1383a2a19
14545a803
1537a7be7
hex262a863

40020067 has 2 divisors, whose sum is σ = 40020068. Its totient is φ = 40020066.

The previous prime is 40020041. The next prime is 40020083. The reversal of 40020067 is 76002004.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40020067 - 27 = 40019939 is a prime.

It is not a weakly prime, because it can be changed into another prime (40020017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20010033 + 20010034.

It is an arithmetic number, because the mean of its divisors is an integer number (20010034).

Almost surely, 240020067 is an apocalyptic number.

40020067 is a deficient number, since it is larger than the sum of its proper divisors (1).

40020067 is an equidigital number, since it uses as much as digits as its factorization.

40020067 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 40020067 is about 6326.1415570630. The cubic root of 40020067 is about 342.0523699199.

The spelling of 40020067 in words is "forty million, twenty thousand, sixty-seven".