42903987420 has 144 divisors (see below), whose sum is σ = 140751112320. Its totient is φ = 9735981696.

The previous prime is 42903987391. The next prime is 42903987421. The reversal of 42903987420 is 2478930924.

It is a self number, because there is not a number n which added to its sum of digits gives 42903987420.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42903987421) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 356167 + ... + 461153.

It is an arithmetic number, because the mean of its divisors is an integer number (977438280).

Almost surely, 2^42903987420 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42903987420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70375556160).

42903987420 is an abundant number, since it is smaller than the sum of its proper divisors (97847124900).

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

42903987420 is a wasteful number, since it uses less digits than its factorization.

42903987420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105152 (or 105143 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 48.

The spelling of 42903987420 in words is "forty-two billion, nine hundred three million, nine hundred eighty-seven thousand, four hundred twenty".