3557474520 has 128 divisors (see below), whose sum is σ = 11070786240. Its totient is φ = 913766400.

The previous prime is 3557474477. The next prime is 3557474527. The reversal of 3557474520 is 254747553.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3557474527) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 444474 + ... + 452406.

Almost surely, 2^3557474520 is an apocalyptic number.

3557474520 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 3557474520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5535393120).

3557474520 is an abundant number, since it is smaller than the sum of its proper divisors (7513311720).

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

3557474520 is a wasteful number, since it uses less digits than its factorization.

3557474520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8085 (or 8081 counting only the distinct ones).

The product of its (nonzero) digits is 588000, while the sum is 42.

The square root of 3557474520 is about 59644.5682355066. The cubic root of 3557474520 is about 1526.5601905956.

The spelling of 3557474520 in words is "three billion, five hundred fifty-seven million, four hundred seventy-four thousand, five hundred twenty".