30890959392 has 96 divisors (see below), whose sum is σ = 85398909120. Its totient is φ = 9750205440.

The previous prime is 30890959357. The next prime is 30890959399. The reversal of 30890959392 is 29395909803.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (57).

It is not an unprimeable number, because it can be changed into a prime (30890959399) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6149842 + ... + 6154862.

It is an arithmetic number, because the mean of its divisors is an integer number (889571970).

Almost surely, 2^30890959392 is an apocalyptic number.

30890959392 is a gapful number since it is divisible by the number (32) 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 30890959392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42699454560).

30890959392 is an abundant number, since it is smaller than the sum of its proper divisors (54507949728).

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

30890959392 is a wasteful number, since it uses less digits than its factorization.

30890959392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8426 (or 8418 counting only the distinct ones).

The product of its (nonzero) digits is 4723920, while the sum is 57.

The spelling of 30890959392 in words is "thirty billion, eight hundred ninety million, nine hundred fifty-nine thousand, three hundred ninety-two".