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40032400330421 is a prime number
BaseRepresentation
bin10010001101000110001010…
…00000000100111010110101
312020202001121210212100000022
421012203011000010322311
520221342323441033141
6221050344131454525
711301150125233322
oct1106430500047265
9166661553770008
1040032400330421
1111834711386954
1245a6669a57445
131945068032a05
149c581562bb49
15496504434b4b
hex2468c5004eb5

40032400330421 has 2 divisors, whose sum is σ = 40032400330422. Its totient is φ = 40032400330420.

The previous prime is 40032400330409. The next prime is 40032400330529. The reversal of 40032400330421 is 12403300423004.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35639347816900 + 4393052513521 = 5969870^2 + 2095961^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-40032400330421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40032400380421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20016200165210 + 20016200165211.

It is an arithmetic number, because the mean of its divisors is an integer number (20016200165211).

Almost surely, 240032400330421 is an apocalyptic number.

It is an amenable number.

40032400330421 is a deficient number, since it is larger than the sum of its proper divisors (1).

40032400330421 is an equidigital number, since it uses as much as digits as its factorization.

40032400330421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 26.

Adding to 40032400330421 its reverse (12403300423004), we get a palindrome (52435700753425).

The spelling of 40032400330421 in words is "forty trillion, thirty-two billion, four hundred million, three hundred thirty thousand, four hundred twenty-one".