4020323732880 has 480 divisors, whose sum is σ = 15619133061504. Its totient is φ = 847910633472.

The previous prime is 4020323732857. The next prime is 4020323732891. The reversal of 4020323732880 is 882373230204.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 689944527 + ... + 689950353.

Almost surely, 2^{4020323732880} is an apocalyptic number.

4020323732880 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 4020323732880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7809566530752).

4020323732880 is an abundant number, since it is smaller than the sum of its proper divisors (11598809328624).

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

4020323732880 is a wasteful number, since it uses less digits than its factorization.

4020323732880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10383 (or 10370 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 42.

The spelling of 4020323732880 in words is "four trillion, twenty billion, three hundred twenty-three million, seven hundred thirty-two thousand, eight hundred eighty".