1042421440624 has 40 divisors (see below), whose sum is σ = 2141307465408. Its totient is φ = 489906554880.

The previous prime is 1042421440597. The next prime is 1042421440679. The reversal of 1042421440624 is 4260441242401.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a self number, because there is not a number n which added to its sum of digits gives 1042421440624.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2311032 + ... + 2725015.

Almost surely, 2^{1042421440624} is an apocalyptic number.

It is an amenable number.

1042421440624 is an abundant number, since it is smaller than the sum of its proper divisors (1098886024784).

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

1042421440624 is a wasteful number, since it uses less digits than its factorization.

1042421440624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5036833 (or 5036827 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 34.

The spelling of 1042421440624 in words is "one trillion, forty-two billion, four hundred twenty-one million, four hundred forty thousand, six hundred twenty-four".