40444462939 has 2 divisors, whose sum is σ = 40444462940. Its totient is φ = 40444462938.

The previous prime is 40444462921. The next prime is 40444462987. The reversal of 40444462939 is 93926444404.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40444462939 - 2⁷ = 40444462811 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40444462892 and 40444462901.

It is not a weakly prime, because it can be changed into another prime (40444462739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20222231469 + 20222231470.

It is an arithmetic number, because the mean of its divisors is an integer number (20222231470).

Almost surely, 2^40444462939 is an apocalyptic number.

40444462939 is a deficient number, since it is larger than the sum of its proper divisors (1).

40444462939 is an equidigital number, since it uses as much as digits as its factorization.

40444462939 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2985984, while the sum is 49.

The spelling of 40444462939 in words is "forty billion, four hundred forty-four million, four hundred sixty-two thousand, nine hundred thirty-nine".