3969658044 has 240 divisors, whose sum is σ = 11982136320. Its totient is φ = 1134207360.

The previous prime is 3969658031. The next prime is 3969658061. The reversal of 3969658044 is 4408569693.

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

It is a congruent number.

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 79 ways as a sum of consecutive naturals, for example, 6475482 + ... + 6476094.

It is an arithmetic number, because the mean of its divisors is an integer number (49925568).

Almost surely, 2^3969658044 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3969658044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5991068160).

3969658044 is an abundant number, since it is smaller than the sum of its proper divisors (8012478276).

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

3969658044 is a wasteful number, since it uses less digits than its factorization.

3969658044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 742 (or 731 counting only the distinct ones).

The product of its (nonzero) digits is 5598720, while the sum is 54.

The square root of 3969658044 is about 63005.2223549763. Note that the first 3 decimals coincide. The cubic root of 3969658044 is about 1583.3771225218.

The spelling of 3969658044 in words is "three billion, nine hundred sixty-nine million, six hundred fifty-eight thousand, forty-four".