3694649880 has 256 divisors, whose sum is σ = 11819520000. Its totient is φ = 922521600.

The previous prime is 3694649869. The next prime is 3694649897. The reversal of 3694649880 is 889464963.

3694649880 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 3694649880.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 24467805 + ... + 24467955.

It is an arithmetic number, because the mean of its divisors is an integer number (46170000).

Almost surely, 2^3694649880 is an apocalyptic number.

3694649880 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 3694649880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5909760000).

3694649880 is an abundant number, since it is smaller than the sum of its proper divisors (8124870120).

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

3694649880 is a wasteful number, since it uses less digits than its factorization.

3694649880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 362 (or 358 counting only the distinct ones).

The product of its (nonzero) digits is 8957952, while the sum is 57.

The square root of 3694649880 is about 60783.6316782734. The cubic root of 3694649880 is about 1545.9345253700.

The spelling of 3694649880 in words is "three billion, six hundred ninety-four million, six hundred forty-nine thousand, eight hundred eighty".