3557623540 has 24 divisors (see below), whose sum is σ = 7472241000. Its totient is φ = 1422814848.

The previous prime is 3557623529. The next prime is 3557623543. The reversal of 3557623540 is 453267553.

It can be written as a sum of positive squares in 4 ways, for example, as 21418384 + 3536205156 = 4628^2 + 59466^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3557623493 and 3557623502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3557623543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 161086 + ... + 181834.

It is an arithmetic number, because the mean of its divisors is an integer number (311343375).

Almost surely, 2^3557623540 is an apocalyptic number.

It is an amenable number.

3557623540 is an abundant number, since it is smaller than the sum of its proper divisors (3914617460).

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

3557623540 is a wasteful number, since it uses less digits than its factorization.

3557623540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29331 (or 29329 counting only the distinct ones).

The product of its (nonzero) digits is 378000, while the sum is 40.

The square root of 3557623540 is about 59645.8174560463. The cubic root of 3557623540 is about 1526.5815057937.

The spelling of 3557623540 in words is "three billion, five hundred fifty-seven million, six hundred twenty-three thousand, five hundred forty".