30278939904 has 864 divisors, whose sum is σ = 106755667200. Its totient is φ = 8174960640.

The previous prime is 30278939893. The next prime is 30278939917. The reversal of 30278939904 is 40993987203.

It is a congruent number.

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, 496376034 + ... + 496376094.

It is an arithmetic number, because the mean of its divisors is an integer number (123559800).

Almost surely, 2^30278939904 is an apocalyptic number.

30278939904 is a gapful number since it is divisible by the number (34) 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 30278939904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53377833600).

30278939904 is an abundant number, since it is smaller than the sum of its proper divisors (76476727296).

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

30278939904 is a wasteful number, since it uses less digits than its factorization.

30278939904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171 (or 154 counting only the distinct ones).

The product of its (nonzero) digits is 2939328, while the sum is 54.

The spelling of 30278939904 in words is "thirty billion, two hundred seventy-eight million, nine hundred thirty-nine thousand, nine hundred four".