40452544040 has 32 divisors (see below), whose sum is σ = 91028870280. Its totient is φ = 16179124992.

The previous prime is 40452544039. The next prime is 40452544043. The reversal of 40452544040 is 4044525404.

It can be written as a sum of positive squares in 4 ways, for example, as 39863316964 + 589227076 = 199658^2 + 24274^2 .

It is a junction number, because it is equal to n+sod(n) for n = 40452543988 and 40452544006.

It is not an unprimeable number, because it can be changed into a prime (40452544043) 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, 316574 + ... + 425586.

Almost surely, 2^40452544040 is an apocalyptic number.

40452544040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40452544040 is an abundant number, since it is smaller than the sum of its proper divisors (50576326240).

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

40452544040 is a wasteful number, since it uses less digits than its factorization.

40452544040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118301 (or 118297 counting only the distinct ones).

The product of its (nonzero) digits is 51200, while the sum is 32.

The spelling of 40452544040 in words is "forty billion, four hundred fifty-two million, five hundred forty-four thousand, forty".