40426747 has 2 divisors, whose sum is σ = 40426748. Its totient is φ = 40426746.

The previous prime is 40426739. The next prime is 40426753. The reversal of 40426747 is 74762404.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40426747 - 2³ = 40426739 is a prime.

It is not a weakly prime, because it can be changed into another prime (40426717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20213373 + 20213374.

It is an arithmetic number, because the mean of its divisors is an integer number (20213374).

Almost surely, 2^40426747 is an apocalyptic number.

40426747 is a deficient number, since it is larger than the sum of its proper divisors (1).

40426747 is an equidigital number, since it uses as much as digits as its factorization.

40426747 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 37632, while the sum is 34.

The square root of 40426747 is about 6358.2031266703. The cubic root of 40426747 is about 343.2071015088.

The spelling of 40426747 in words is "forty million, four hundred twenty-six thousand, seven hundred forty-seven".