40521435054430 has 64 divisors (see below), whose sum is σ = 81722263677120. Its totient is φ = 14336405222400.

The previous prime is 40521435054421. The next prime is 40521435054431. The reversal of 40521435054430 is 3445053412504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40521435054431) 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, 162141970 + ... + 162391690.

It is an arithmetic number, because the mean of its divisors is an integer number (1276910369955).

Almost surely, 2^{40521435054430} is an apocalyptic number.

40521435054430 is an abundant number, since it is smaller than the sum of its proper divisors (41200828622690).

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

40521435054430 is a wasteful number, since it uses less digits than its factorization.

40521435054430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289645.

The product of its (nonzero) digits is 576000, while the sum is 40.

Adding to 40521435054430 its reverse (3445053412504), we get a palindrome (43966488466934).

The spelling of 40521435054430 in words is "forty trillion, five hundred twenty-one billion, four hundred thirty-five million, fifty-four thousand, four hundred thirty".