40224021234440 has 32 divisors (see below), whose sum is σ = 90517651870680. Its totient is φ = 16087189988352.

The previous prime is 40224021234413. The next prime is 40224021234547. The reversal of 40224021234440 is 4443212042204.

It can be written as a sum of positive squares in 4 ways, for example, as 15196633737796 + 25027387496644 = 3898286^2 + 5002738^2 .

It is a super-2 number, since 2×40224021234440² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40224021234397 and 40224021234406.

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, 75308849 + ... + 75841088.

Almost surely, 2^{40224021234440} is an apocalyptic number.

40224021234440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40224021234440 is an abundant number, since it is smaller than the sum of its proper divisors (50293630636240).

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

40224021234440 is a wasteful number, since it uses less digits than its factorization.

40224021234440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151156601 (or 151156597 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 32.

Adding to 40224021234440 its reverse (4443212042204), we get a palindrome (44667233276644).

The spelling of 40224021234440 in words is "forty trillion, two hundred twenty-four billion, twenty-one million, two hundred thirty-four thousand, four hundred forty".