39942372148 has 72 divisors (see below), whose sum is σ = 84951683712. Its totient is φ = 16353602496.

The previous prime is 39942372143. The next prime is 39942372161. The reversal of 39942372148 is 84127324993.

It is a super-2 number, since 2×39942372148² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 39942372095 and 39942372104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39942372143) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3948465 + ... + 3958567.

It is an arithmetic number, because the mean of its divisors is an integer number (1179884496).

Almost surely, 2^39942372148 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 39942372148, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42475841856).

39942372148 is an abundant number, since it is smaller than the sum of its proper divisors (45009311564).

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

39942372148 is a wasteful number, since it uses less digits than its factorization.

39942372148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11021 (or 11012 counting only the distinct ones).

The product of its digits is 2612736, while the sum is 52.

The spelling of 39942372148 in words is "thirty-nine billion, nine hundred forty-two million, three hundred seventy-two thousand, one hundred forty-eight".