40426349 has 2 divisors, whose sum is σ = 40426350. Its totient is φ = 40426348.

The previous prime is 40426339. The next prime is 40426403. The reversal of 40426349 is 94362404.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28281124 + 12145225 = 5318^2 + 3485^2 .

It is a cyclic number.

It is not a de Polignac number, because 40426349 - 2⁸ = 40426093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40426339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20213174 + 20213175.

It is an arithmetic number, because the mean of its divisors is an integer number (20213175).

Almost surely, 2^40426349 is an apocalyptic number.

It is an amenable number.

40426349 is a deficient number, since it is larger than the sum of its proper divisors (1).

40426349 is an equidigital number, since it uses as much as digits as its factorization.

40426349 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 32.

The square root of 40426349 is about 6358.1718284425. The cubic root of 40426349 is about 343.2059752176.

The spelling of 40426349 in words is "forty million, four hundred twenty-six thousand, three hundred forty-nine".