39950622720 has 672 divisors, whose sum is σ = 148591188720. Its totient is φ = 9909043200.

The previous prime is 39950622661. The next prime is 39950622721. The reversal of 39950622720 is 2722605993.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 35911766016 + 4038856704 = 189504^2 + 63552^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (39950622721) 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, 395550670 + ... + 395550770.

Almost surely, 2^39950622720 is an apocalyptic number.

39950622720 is a gapful number since it is divisible by the number (30) 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 39950622720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74295594360).

39950622720 is an abundant number, since it is smaller than the sum of its proper divisors (108640566000).

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

39950622720 is a wasteful number, since it uses less digits than its factorization.

39950622720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204 (or 177 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 45.

The spelling of 39950622720 in words is "thirty-nine billion, nine hundred fifty million, six hundred twenty-two thousand, seven hundred twenty".