42403400240 has 40 divisors (see below), whose sum is σ = 99022255920. Its totient is φ = 16886633216.

The previous prime is 42403400227. The next prime is 42403400269. The reversal of 42403400240 is 4200430424.

It is a tau number, because it is divible by the number of its divisors (40).

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 7 ways as a sum of consecutive naturals, for example, 1149335 + ... + 1185654.

It is an arithmetic number, because the mean of its divisors is an integer number (2475556398).

Almost surely, 2^42403400240 is an apocalyptic number.

42403400240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42403400240 is an abundant number, since it is smaller than the sum of its proper divisors (56618855680).

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

42403400240 is a wasteful number, since it uses less digits than its factorization.

42403400240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2335229 (or 2335223 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 23.

Adding to 42403400240 its reverse (4200430424), we get a palindrome (46603830664).

The spelling of 42403400240 in words is "forty-two billion, four hundred three million, four hundred thousand, two hundred forty".