40426093 has 2 divisors, whose sum is σ = 40426094. Its totient is φ = 40426092.

The previous prime is 40426081. The next prime is 40426147. The reversal of 40426093 is 39062404.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36808489 + 3617604 = 6067^2 + 1902^2 .

It is a cyclic number.

It is not a de Polignac number, because 40426093 - 2²⁵ = 6871661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40426003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20213046 + 20213047.

It is an arithmetic number, because the mean of its divisors is an integer number (20213047).

Almost surely, 2^40426093 is an apocalyptic number.

It is an amenable number.

40426093 is a deficient number, since it is larger than the sum of its proper divisors (1).

40426093 is an equidigital number, since it uses as much as digits as its factorization.

40426093 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 40426093 is about 6358.1516968377. The cubic root of 40426093 is about 343.2052507650.

Adding to 40426093 its reverse (39062404), we get a palindrome (79488497).

The spelling of 40426093 in words is "forty million, four hundred twenty-six thousand, ninety-three".