40444667 has 2 divisors, whose sum is σ = 40444668. Its totient is φ = 40444666.

The previous prime is 40444661. The next prime is 40444669. The reversal of 40444667 is 76644404.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40444667 - 2¹⁰ = 40443643 is a prime.

Together with 40444669, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (40444661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20222333 + 20222334.

It is an arithmetic number, because the mean of its divisors is an integer number (20222334).

Almost surely, 2^40444667 is an apocalyptic number.

40444667 is a deficient number, since it is larger than the sum of its proper divisors (1).

40444667 is an equidigital number, since it uses as much as digits as its factorization.

40444667 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64512, while the sum is 35.

The square root of 40444667 is about 6359.6121737100. The cubic root of 40444667 is about 343.2578052565.

The spelling of 40444667 in words is "forty million, four hundred forty-four thousand, six hundred sixty-seven".