42400624020 has 48 divisors (see below), whose sum is σ = 118730888640. Its totient is φ = 11305962496.

The previous prime is 42400623943. The next prime is 42400624027. The reversal of 42400624020 is 2042600424.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42400624027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1268644 + ... + 1301636.

It is an arithmetic number, because the mean of its divisors is an integer number (2473560180).

Almost surely, 2^42400624020 is an apocalyptic number.

It is an amenable number.

42400624020 is an abundant number, since it is smaller than the sum of its proper divisors (76330264620).

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

42400624020 is a wasteful number, since it uses less digits than its factorization.

42400624020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54424 (or 54422 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

The spelling of 42400624020 in words is "forty-two billion, four hundred million, six hundred twenty-four thousand, twenty".