3550207428 has 24 divisors (see below), whose sum is σ = 9204241760. Its totient is φ = 1183402440.

The previous prime is 3550207421. The next prime is 3550207429. The reversal of 3550207428 is 8247020553.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 3550207392 and 3550207401.

It is not an unprimeable number, because it can be changed into a prime (3550207421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16436038 + ... + 16436253.

Almost surely, 2^3550207428 is an apocalyptic number.

It is an amenable number.

3550207428 is an abundant number, since it is smaller than the sum of its proper divisors (5654034332).

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

3550207428 is a wasteful number, since it uses less digits than its factorization.

3550207428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32872304 (or 32872296 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 36.

The square root of 3550207428 is about 59583.6171107461. The cubic root of 3550207428 is about 1525.5200130026.

The spelling of 3550207428 in words is "three billion, five hundred fifty million, two hundred seven thousand, four hundred twenty-eight".