40501452420 has 144 divisors (see below), whose sum is σ = 144332540352. Its totient is φ = 9063256320.

The previous prime is 40501452377. The next prime is 40501452421. The reversal of 40501452420 is 2425410504.

40501452420 is a `hidden beast` number, since 405 + 0 + 14 + 5 + 242 + 0 = 666.

It is not an unprimeable number, because it can be changed into a prime (40501452421) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 761002 + ... + 812481.

It is an arithmetic number, because the mean of its divisors is an integer number (1002309308).

Almost surely, 2^40501452420 is an apocalyptic number.

It is an amenable number.

40501452420 is an abundant number, since it is smaller than the sum of its proper divisors (103831087932).

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

40501452420 is a wasteful number, since it uses less digits than its factorization.

40501452420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1573522 (or 1573517 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 27.

Adding to 40501452420 its reverse (2425410504), we get a palindrome (42926862924).

The spelling of 40501452420 in words is "forty billion, five hundred one million, four hundred fifty-two thousand, four hundred twenty".