308949189120 has 1920 divisors, whose sum is σ = 1369280360448. Its totient is φ = 65691648000.

The previous prime is 308949189061. The next prime is 308949189161. The reversal of 308949189120 is 21981949803.

It is a tau number, because it is divible by the number of its divisors (1920).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 2046021045 + ... + 2046021195.

Almost surely, 2^308949189120 is an apocalyptic number.

308949189120 is a gapful number since it is divisible by the number (30) 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 308949189120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (684640180224).

308949189120 is an abundant number, since it is smaller than the sum of its proper divisors (1060331171328).

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

308949189120 is a wasteful number, since it uses less digits than its factorization.

308949189120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236 (or 208 counting only the distinct ones).

The product of its (nonzero) digits is 1119744, while the sum is 54.

The spelling of 308949189120 in words is "three hundred eight billion, nine hundred forty-nine million, one hundred eighty-nine thousand, one hundred twenty".