40015430532 has 144 divisors (see below), whose sum is σ = 126175795200. Its totient is φ = 10388134080.

The previous prime is 40015430503. The next prime is 40015430549. The reversal of 40015430532 is 23503451004.

It is a super-2 number, since 2×40015430532² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40015430496 and 40015430505.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9808069 + ... + 9812147.

It is an arithmetic number, because the mean of its divisors is an integer number (876220800).

Almost surely, 2^40015430532 is an apocalyptic number.

40015430532 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40015430532, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63087897600).

40015430532 is an abundant number, since it is smaller than the sum of its proper divisors (86160364668).

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

40015430532 is a wasteful number, since it uses less digits than its factorization.

40015430532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7646 (or 7641 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

Adding to 40015430532 its reverse (23503451004), we get a palindrome (63518881536).

The spelling of 40015430532 in words is "forty billion, fifteen million, four hundred thirty thousand, five hundred thirty-two".