40220244402440 has 32 divisors (see below), whose sum is σ = 90711529776000. Its totient is φ = 16049701339584.

The previous prime is 40220244402433. The next prime is 40220244402451. The reversal of 40220244402440 is 4420444202204.

It is a junction number, because it is equal to n+sod(n) for n = 40220244402397 and 40220244402406.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1199871200 + ... + 1199904719.

It is an arithmetic number, because the mean of its divisors is an integer number (2834735305500).

Almost surely, 2^{40220244402440} is an apocalyptic number.

40220244402440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40220244402440 is an abundant number, since it is smaller than the sum of its proper divisors (50491285373560).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40220244402440 is a wasteful number, since it uses less digits than its factorization.

40220244402440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2399776349 (or 2399776345 counting only the distinct ones).

The product of its (nonzero) digits is 65536, while the sum is 32.

Adding to 40220244402440 its reverse (4420444202204), we get a palindrome (44640688604644).

The spelling of 40220244402440 in words is "forty trillion, two hundred twenty billion, two hundred forty-four million, four hundred two thousand, four hundred forty".