42424413440 has 36 divisors (see below), whose sum is σ = 101619730884. Its totient is φ = 16969764864.

The previous prime is 42424413433. The next prime is 42424413463. The reversal of 42424413440 is 4431442424.

It can be written as a sum of positive squares in 2 ways, for example, as 33750098944 + 8674314496 = 183712^2 + 93136^2 .

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a junction number, because it is equal to n+sod(n) for n = 42424413397 and 42424413406.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 16570757 + ... + 16573316.

Almost surely, 2^42424413440 is an apocalyptic number.

42424413440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42424413440 is an abundant number, since it is smaller than the sum of its proper divisors (59195317444).

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

42424413440 is an equidigital number, since it uses as much as digits as its factorization.

42424413440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33144094 (or 33144080 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 32.

Adding to 42424413440 its reverse (4431442424), we get a palindrome (46855855864).

The spelling of 42424413440 in words is "forty-two billion, four hundred twenty-four million, four hundred thirteen thousand, four hundred forty".