3551432020 has 24 divisors (see below), whose sum is σ = 7502673024. Its totient is φ = 1412065056.

The previous prime is 3551432009. The next prime is 3551432021. The reversal of 3551432020 is 202341553.

It is a super-2 number, since 2×3551432020² = 25225338785362560800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3551432021) 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 7 ways as a sum of consecutive naturals, for example, 528312 + ... + 534991.

It is an arithmetic number, because the mean of its divisors is an integer number (312611376).

Almost surely, 2^3551432020 is an apocalyptic number.

It is an amenable number.

3551432020 is an abundant number, since it is smaller than the sum of its proper divisors (3951241004).

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

3551432020 is a wasteful number, since it uses less digits than its factorization.

3551432020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1063479 (or 1063477 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 3551432020 is about 59593.8924722995. The cubic root of 3551432020 is about 1525.6953947596.

Adding to 3551432020 its reverse (202341553), we get a palindrome (3753773573).

The spelling of 3551432020 in words is "three billion, five hundred fifty-one million, four hundred thirty-two thousand, twenty".