42421446320 has 160 divisors (see below), whose sum is σ = 109268702784. Its totient is φ = 15187968000.

The previous prime is 42421446271. The next prime is 42421446371. The reversal of 42421446320 is 2364412424.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17152604 + ... + 17155076.

Almost surely, 2^42421446320 is an apocalyptic number.

42421446320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42421446320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54634351392).

42421446320 is an abundant number, since it is smaller than the sum of its proper divisors (66847256464).

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

42421446320 is a wasteful number, since it uses less digits than its factorization.

42421446320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2791 (or 2785 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 32.

Adding to 42421446320 its reverse (2364412424), we get a palindrome (44785858744).

The spelling of 42421446320 in words is "forty-two billion, four hundred twenty-one million, four hundred forty-six thousand, three hundred twenty".