3495555720 has 96 divisors (see below), whose sum is σ = 11382972120. Its totient is φ = 930309120.

The previous prime is 3495555703. The next prime is 3495555733. The reversal of 3495555720 is 275555943.

3495555720 is a `hidden beast` number, since 3 + 4 + 95 + 5 + 557 + 2 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1213964964 + 2281590756 = 34842^2 + 47766^2 .

It is a super-3 number, since 3×3495555720³ (a number of 30 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 178242 + ... + 196878.

Almost surely, 2^3495555720 is an apocalyptic number.

3495555720 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 3495555720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5691486060).

3495555720 is an abundant number, since it is smaller than the sum of its proper divisors (7887416400).

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

3495555720 is a wasteful number, since it uses less digits than its factorization.

3495555720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19175 (or 19168 counting only the distinct ones).

The product of its (nonzero) digits is 945000, while the sum is 45.

The square root of 3495555720 is about 59123.2248782152. The cubic root of 3495555720 is about 1517.6515731846.

The spelling of 3495555720 in words is "three billion, four hundred ninety-five million, five hundred fifty-five thousand, seven hundred twenty".