3545657280 has 224 divisors, whose sum is σ = 13645774080. Its totient is φ = 859530240.

The previous prime is 3545657267. The next prime is 3545657281. The reversal of 3545657280 is 827565453.

3545657280 is a `hidden beast` number, since 3 + 5 + 4 + 565 + 7 + 2 + 80 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3545657281) 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, 76387 + ... + 113693.

Almost surely, 2^3545657280 is an apocalyptic number.

3545657280 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 3545657280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6822887040).

3545657280 is an abundant number, since it is smaller than the sum of its proper divisors (10100116800).

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

3545657280 is a wasteful number, since it uses less digits than its factorization.

3545657280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37344 (or 37328 counting only the distinct ones).

The product of its (nonzero) digits is 1008000, while the sum is 45.

The square root of 3545657280 is about 59545.4219902756. The cubic root of 3545657280 is about 1524.8680032667.

The spelling of 3545657280 in words is "three billion, five hundred forty-five million, six hundred fifty-seven thousand, two hundred eighty".