39930078528 has 336 divisors, whose sum is σ = 119822976000. Its totient is φ = 12705997824.

The previous prime is 39930078523. The next prime is 39930078547. The reversal of 39930078528 is 82587003993.

It is a happy number.

It is a super-2 number, since 2×39930078528² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39930078523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 287266683 + ... + 287266821.

It is an arithmetic number, because the mean of its divisors is an integer number (356616000).

Almost surely, 2^39930078528 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 39930078528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59911488000).

39930078528 is an abundant number, since it is smaller than the sum of its proper divisors (79892897472).

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

39930078528 is a wasteful number, since it uses less digits than its factorization.

39930078528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402 (or 389 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 54.

The spelling of 39930078528 in words is "thirty-nine billion, nine hundred thirty million, seventy-eight thousand, five hundred twenty-eight".