442515415540 has 48 divisors (see below), whose sum is σ = 1048719934080. Its totient is φ = 155365911680.

The previous prime is 442515415519. The next prime is 442515415541. The reversal of 442515415540 is 45514515244.

It is a junction number, because it is equal to n+sod(n) for n = 442515415493 and 442515415502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442515415541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34673512 + ... + 34686271.

It is an arithmetic number, because the mean of its divisors is an integer number (21848331960).

Almost surely, 2^442515415540 is an apocalyptic number.

It is an amenable number.

442515415540 is an abundant number, since it is smaller than the sum of its proper divisors (606204518540).

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

442515415540 is a wasteful number, since it uses less digits than its factorization.

442515415540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69359832 (or 69359830 counting only the distinct ones).

The product of its (nonzero) digits is 320000, while the sum is 40.

The spelling of 442515415540 in words is "four hundred forty-two billion, five hundred fifteen million, four hundred fifteen thousand, five hundred forty".