3091969408 has 128 divisors (see below), whose sum is σ = 7248528000. Its totient is φ = 1298534400.

The previous prime is 3091969379. The next prime is 3091969409. The reversal of 3091969408 is 8049691903.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3091969409) 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, 1095423 + ... + 1098241.

It is an arithmetic number, because the mean of its divisors is an integer number (56629125).

Almost surely, 2^3091969408 is an apocalyptic number.

3091969408 is a gapful number since it is divisible by the number (38) 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 3091969408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3624264000).

3091969408 is an abundant number, since it is smaller than the sum of its proper divisors (4156558592).

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

3091969408 is a wasteful number, since it uses less digits than its factorization.

3091969408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2904 (or 2892 counting only the distinct ones).

The product of its (nonzero) digits is 419904, while the sum is 49.

The square root of 3091969408 is about 55605.4800177105. The cubic root of 3091969408 is about 1456.8395713349.

The spelling of 3091969408 in words is "three billion, ninety-one million, nine hundred sixty-nine thousand, four hundred eight".