3557042420 has 12 divisors (see below), whose sum is σ = 7469789124. Its totient is φ = 1422816960.

The previous prime is 3557042417. The next prime is 3557042429. The reversal of 3557042420 is 242407553.

It can be written as a sum of positive squares in 2 ways, for example, as 1892076004 + 1664966416 = 43498^2 + 40804^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3557042429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88926041 + ... + 88926080.

It is an arithmetic number, because the mean of its divisors is an integer number (622482427).

Almost surely, 2^3557042420 is an apocalyptic number.

It is an amenable number.

3557042420 is an abundant number, since it is smaller than the sum of its proper divisors (3912746704).

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

3557042420 is a wasteful number, since it uses less digits than its factorization.

3557042420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177852130 (or 177852128 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 32.

The square root of 3557042420 is about 59640.9458342169. The cubic root of 3557042420 is about 1526.4983814514.

Adding to 3557042420 its reverse (242407553), we get a palindrome (3799449973).

The spelling of 3557042420 in words is "three billion, five hundred fifty-seven million, forty-two thousand, four hundred twenty".