3809949696 has 480 divisors, whose sum is σ = 13842148320. Its totient is φ = 1019215872.

The previous prime is 3809949691. The next prime is 3809949743. The reversal of 3809949696 is 6969499083.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3809949691) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 19740576 + ... + 19740768.

It is an arithmetic number, because the mean of its divisors is an integer number (28837809).

Almost surely, 2^3809949696 is an apocalyptic number.

3809949696 is a gapful number since it is divisible by the number (36) 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 3809949696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6921074160).

3809949696 is an abundant number, since it is smaller than the sum of its proper divisors (10032198624).

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

3809949696 is a wasteful number, since it uses less digits than its factorization.

3809949696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251 (or 222 counting only the distinct ones).

The product of its (nonzero) digits is 22674816, while the sum is 63.

The square root of 3809949696 is about 61724.7899631906. The cubic root of 3809949696 is about 1561.8515294021.

The spelling of 3809949696 in words is "three billion, eight hundred nine million, nine hundred forty-nine thousand, six hundred ninety-six".