40440341642 has 24 divisors (see below), whose sum is σ = 65654549676. Its totient is φ = 18671664128.

The previous prime is 40440341639. The next prime is 40440341651. The reversal of 40440341642 is 24614304404.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 40417483681 + 22857961 = 201041^2 + 4781^2 .

It is a junction number, because it is equal to n+sod(n) for n = 40440341599 and 40440341608.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 629423 + ... + 690690.

Almost surely, 2^40440341642 is an apocalyptic number.

40440341642 is a deficient number, since it is larger than the sum of its proper divisors (25214208034).

40440341642 is a wasteful number, since it uses less digits than its factorization.

40440341642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1320202 (or 1320185 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 32.

The spelling of 40440341642 in words is "forty billion, four hundred forty million, three hundred forty-one thousand, six hundred forty-two".