3654405888 has 324 divisors, whose sum is σ = 11985177960. Its totient is φ = 985485312.

The previous prime is 3654405847. The next prime is 3654405889. The reversal of 3654405888 is 8885044563.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 3654405888.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3654405889) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 13585018 + ... + 13585286.

It is an arithmetic number, because the mean of its divisors is an integer number (36991290).

Almost surely, 2^3654405888 is an apocalyptic number.

3654405888 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 3654405888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5992588980).

3654405888 is an abundant number, since it is smaller than the sum of its proper divisors (8330772072).

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

3654405888 is a wasteful number, since it uses less digits than its factorization.

3654405888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340 (or 300 counting only the distinct ones).

The product of its (nonzero) digits is 3686400, while the sum is 51.

The square root of 3654405888 is about 60451.6822594707. The cubic root of 3654405888 is about 1540.3009880010.

The spelling of 3654405888 in words is "three billion, six hundred fifty-four million, four hundred five thousand, eight hundred eighty-eight".