40430537481 has 8 divisors (see below), whose sum is σ = 53927441440. Its totient is φ = 26943662592.

The previous prime is 40430537449. The next prime is 40430537491. The reversal of 40430537481 is 18473503404.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40430537481 - 2⁵ = 40430537449 is a prime.

It is a super-2 number, since 2×40430537481² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40430537491) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2497855 + ... + 2513988.

It is an arithmetic number, because the mean of its divisors is an integer number (6740930180).

Almost surely, 2^40430537481 is an apocalyptic number.

It is an amenable number.

40430537481 is a deficient number, since it is larger than the sum of its proper divisors (13496903959).

40430537481 is a wasteful number, since it uses less digits than its factorization.

40430537481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5014535.

The product of its (nonzero) digits is 161280, while the sum is 39.

The spelling of 40430537481 in words is "forty billion, four hundred thirty million, five hundred thirty-seven thousand, four hundred eighty-one".