40521432144 has 20 divisors (see below), whose sum is σ = 104680366496. Its totient is φ = 13507144032.

The previous prime is 40521432121. The next prime is 40521432167. The reversal of 40521432144 is 44123412504.

It is an interprime number because it is at equal distance from previous prime (40521432121) and next prime (40521432167).

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 3 ways as a sum of consecutive naturals, for example, 422098204 + ... + 422098299.

Almost surely, 2^40521432144 is an apocalyptic number.

It is an amenable number.

40521432144 is an abundant number, since it is smaller than the sum of its proper divisors (64158934352).

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

40521432144 is a wasteful number, since it uses less digits than its factorization.

40521432144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 844196514 (or 844196508 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 30.

Adding to 40521432144 its reverse (44123412504), we get a palindrome (84644844648).

The spelling of 40521432144 in words is "forty billion, five hundred twenty-one million, four hundred thirty-two thousand, one hundred forty-four".