40426723 has 2 divisors, whose sum is σ = 40426724. Its totient is φ = 40426722.

The previous prime is 40426717. The next prime is 40426733. The reversal of 40426723 is 32762404.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40426723 - 2²⁵ = 6872291 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40426691 and 40426700.

It is not a weakly prime, because it can be changed into another prime (40426733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20213361 + 20213362.

It is an arithmetic number, because the mean of its divisors is an integer number (20213362).

Almost surely, 2^40426723 is an apocalyptic number.

40426723 is a deficient number, since it is larger than the sum of its proper divisors (1).

40426723 is an equidigital number, since it uses as much as digits as its factorization.

40426723 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8064, while the sum is 28.

The square root of 40426723 is about 6358.2012393443. The cubic root of 40426723 is about 343.2070335920.

The spelling of 40426723 in words is "forty million, four hundred twenty-six thousand, seven hundred twenty-three".