40054447 has 2 divisors, whose sum is σ = 40054448. Its totient is φ = 40054446.

The previous prime is 40054433. The next prime is 40054453. The reversal of 40054447 is 74445004.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40054447 - 2¹⁹ = 39530159 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40057447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20027223 + 20027224.

It is an arithmetic number, because the mean of its divisors is an integer number (20027224).

Almost surely, 2^40054447 is an apocalyptic number.

40054447 is a deficient number, since it is larger than the sum of its proper divisors (1).

40054447 is an equidigital number, since it uses as much as digits as its factorization.

40054447 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8960, while the sum is 28.

The square root of 40054447 is about 6328.8582698620. The cubic root of 40054447 is about 342.1502907505.

The spelling of 40054447 in words is "forty million, fifty-four thousand, four hundred forty-seven".