39948019056 has 240 divisors, whose sum is σ = 127209858048. Its totient is φ = 11592806400.

The previous prime is 39948019031. The next prime is 39948019081. The reversal of 39948019056 is 65091084993.

It is an interprime number because it is at equal distance from previous prime (39948019031) and next prime (39948019081).

It is a super-2 number, since 2×39948019056² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 39948018993 and 39948019011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4758895 + ... + 4767281.

Almost surely, 2^39948019056 is an apocalyptic number.

39948019056 is a gapful number since it is divisible by the number (36) 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 39948019056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63604929024).

39948019056 is an abundant number, since it is smaller than the sum of its proper divisors (87261838992).

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

39948019056 is a wasteful number, since it uses less digits than its factorization.

39948019056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8540 (or 8531 counting only the distinct ones).

The product of its (nonzero) digits is 2099520, while the sum is 54.

The spelling of 39948019056 in words is "thirty-nine billion, nine hundred forty-eight million, nineteen thousand, fifty-six".