3598687440 has 200 divisors, whose sum is σ = 12651252768. Its totient is φ = 947946240.

The previous prime is 3598687427. The next prime is 3598687471. The reversal of 3598687440 is 447868953.

3598687440 is a `hidden beast` number, since 3 + 598 + 6 + 8 + 7 + 4 + 40 = 666.

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 (19) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 534495 + ... + 541185.

Almost surely, 2^3598687440 is an apocalyptic number.

3598687440 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 3598687440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6325626384).

3598687440 is an abundant number, since it is smaller than the sum of its proper divisors (9052565328).

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

3598687440 is a wasteful number, since it uses less digits than its factorization.

3598687440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6799 (or 6784 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 54.

The square root of 3598687440 is about 59989.0610028195. The cubic root of 3598687440 is about 1532.4325778658.

The spelling of 3598687440 in words is "three billion, five hundred ninety-eight million, six hundred eighty-seven thousand, four hundred forty".