40204134420440 has 64 divisors (see below), whose sum is σ = 95273192412000. Its totient is φ = 15226791091200.

The previous prime is 40204134420407. The next prime is 40204134420473. The reversal of 40204134420440 is 4402443140204.

It is an interprime number because it is at equal distance from previous prime (40204134420407) and next prime (40204134420473).

It is a junction number, because it is equal to n+sod(n) for n = 40204134420397 and 40204134420406.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13317575 + ... + 16055094.

Almost surely, 2^{40204134420440} is an apocalyptic number.

40204134420440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40204134420440 is an abundant number, since it is smaller than the sum of its proper divisors (55069057991560).

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

40204134420440 is a wasteful number, since it uses less digits than its factorization.

40204134420440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29374500 (or 29374496 counting only the distinct ones).

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

Adding to 40204134420440 its reverse (4402443140204), we get a palindrome (44606577560644).

The spelling of 40204134420440 in words is "forty trillion, two hundred four billion, one hundred thirty-four million, four hundred twenty thousand, four hundred forty".