40802423 has 2 divisors, whose sum is σ = 40802424. Its totient is φ = 40802422.

The previous prime is 40802393. The next prime is 40802441. The reversal of 40802423 is 32420804.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40802423 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40802123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20401211 + 20401212.

It is an arithmetic number, because the mean of its divisors is an integer number (20401212).

Almost surely, 2^40802423 is an apocalyptic number.

40802423 is a deficient number, since it is larger than the sum of its proper divisors (1).

40802423 is an equidigital number, since it uses as much as digits as its factorization.

40802423 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 40802423 is about 6387.6774339348. The cubic root of 40802423 is about 344.2669388983.

The spelling of 40802423 in words is "forty million, eight hundred two thousand, four hundred twenty-three".