3495542640 has 160 divisors (see below), whose sum is σ = 11313561600. Its totient is φ = 891770880.

The previous prime is 3495542623. The next prime is 3495542647. The reversal of 3495542640 is 462455943.

It is a junction number, because it is equal to n+sod(n) for n = 3495542592 and 3495542601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3495542647) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 659521 + ... + 664799.

It is an arithmetic number, because the mean of its divisors is an integer number (70709760).

Almost surely, 2^3495542640 is an apocalyptic number.

3495542640 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 3495542640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5656780800).

3495542640 is an abundant number, since it is smaller than the sum of its proper divisors (7818018960).

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

3495542640 is a wasteful number, since it uses less digits than its factorization.

3495542640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5415 (or 5409 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 42.

The square root of 3495542640 is about 59123.1142616828. The cubic root of 3495542640 is about 1517.6496802183.

The spelling of 3495542640 in words is "three billion, four hundred ninety-five million, five hundred forty-two thousand, six hundred forty".