40802459 has 2 divisors, whose sum is σ = 40802460. Its totient is φ = 40802458.

The previous prime is 40802441. The next prime is 40802471. The reversal of 40802459 is 95420804.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40802459 - 2¹² = 40798363 is a prime.

It is not a weakly prime, because it can be changed into another prime (40802659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20401229 + 20401230.

It is an arithmetic number, because the mean of its divisors is an integer number (20401230).

Almost surely, 2^40802459 is an apocalyptic number.

40802459 is a deficient number, since it is larger than the sum of its proper divisors (1).

40802459 is an equidigital number, since it uses as much as digits as its factorization.

40802459 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 40802459 is about 6387.6802518598. The cubic root of 40802459 is about 344.2670401472.

The spelling of 40802459 in words is "forty million, eight hundred two thousand, four hundred fifty-nine".