40230032402440 has 64 divisors (see below), whose sum is σ = 91763832711600. Its totient is φ = 15870485901312.

The previous prime is 40230032402401. The next prime is 40230032402467. The reversal of 40230032402440 is 4420423003204.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 16432045893316 + 23797986509124 = 4053646^2 + 4878318^2 .

It is a junction number, because it is equal to n+sod(n) for n = 40230032402399 and 40230032402408.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42788916 + ... + 43719004.

Almost surely, 2^{40230032402440} is an apocalyptic number.

40230032402440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40230032402440 is an abundant number, since it is smaller than the sum of its proper divisors (51533800309160).

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

40230032402440 is a wasteful number, since it uses less digits than its factorization.

40230032402440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 944986 (or 944982 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 28.

Adding to 40230032402440 its reverse (4420423003204), we get a palindrome (44650455405644).

The spelling of 40230032402440 in words is "forty trillion, two hundred thirty billion, thirty-two million, four hundred two thousand, four hundred forty".