40244242445213 has 32 divisors (see below), whose sum is σ = 43212345696000. Its totient is φ = 37381760672256.

The previous prime is 40244242445117. The next prime is 40244242445257. The reversal of 40244242445213 is 31254424244204.

It is not a de Polignac number, because 40244242445213 - 2⁴⁴ = 22652056400797 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40244242441213) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 968576363 + ... + 968617911.

It is an arithmetic number, because the mean of its divisors is an integer number (1350385803000).

Almost surely, 2^{40244242445213} is an apocalyptic number.

It is an amenable number.

40244242445213 is a deficient number, since it is larger than the sum of its proper divisors (2968103250787).

40244242445213 is a wasteful number, since it uses less digits than its factorization.

40244242445213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43781.

The product of its (nonzero) digits is 983040, while the sum is 41.

Adding to 40244242445213 its reverse (31254424244204), we get a palindrome (71498666689417).

The spelling of 40244242445213 in words is "forty trillion, two hundred forty-four billion, two hundred forty-two million, four hundred forty-five thousand, two hundred thirteen".