3534398857440 has 288 divisors, whose sum is σ = 13173874826112. Its totient is φ = 855764352000.

The previous prime is 3534398857411. The next prime is 3534398857547. The reversal of 3534398857440 is 447588934353.

It is a happy number.

3534398857440 is a `hidden beast` number, since 3 + 5 + 34 + 39 + 88 + 57 + 440 = 666.

It is a tau number, because it is divible by the number of its divisors (288).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 12708675 + ... + 12983805.

It is an arithmetic number, because the mean of its divisors is an integer number (45742620924).

Almost surely, 2^{3534398857440} is an apocalyptic number.

3534398857440 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 3534398857440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6586937413056).

3534398857440 is an abundant number, since it is smaller than the sum of its proper divisors (9639475968672).

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

3534398857440 is a wasteful number, since it uses less digits than its factorization.

3534398857440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275974 (or 275963 counting only the distinct ones).

The product of its (nonzero) digits is 174182400, while the sum is 63.

The spelling of 3534398857440 in words is "three trillion, five hundred thirty-four billion, three hundred ninety-eight million, eight hundred fifty-seven thousand, four hundred forty".