40839401 has 2 divisors, whose sum is σ = 40839402. Its totient is φ = 40839400.

The previous prime is 40839371. The next prime is 40839419. The reversal of 40839401 is 10493804.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38440000 + 2399401 = 6200^2 + 1549^2 .

It is a cyclic number.

It is not a de Polignac number, because 40839401 - 2¹⁴ = 40823017 is a prime.

It is not a weakly prime, because it can be changed into another prime (40839101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20419700 + 20419701.

It is an arithmetic number, because the mean of its divisors is an integer number (20419701).

Almost surely, 2^40839401 is an apocalyptic number.

It is an amenable number.

40839401 is a deficient number, since it is larger than the sum of its proper divisors (1).

40839401 is an equidigital number, since it uses as much as digits as its factorization.

40839401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 40839401 is about 6390.5712577202. The cubic root of 40839401 is about 344.3709070630.

The spelling of 40839401 in words is "forty million, eight hundred thirty-nine thousand, four hundred one".