3555421384 has 8 divisors (see below), whose sum is σ = 6666415110. Its totient is φ = 1777710688.

The previous prime is 3555421381. The next prime is 3555421391. The reversal of 3555421384 is 4831245553.

It can be written as a sum of positive squares in only one way, i.e., 2598756484 + 956664900 = 50978^2 + 30930^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (3555421381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222213829 + ... + 222213844.

Almost surely, 2^3555421384 is an apocalyptic number.

It is an amenable number.

3555421384 is a deficient number, since it is larger than the sum of its proper divisors (3110993726).

3555421384 is a wasteful number, since it uses less digits than its factorization.

3555421384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444427679 (or 444427675 counting only the distinct ones).

The product of its digits is 288000, while the sum is 40.

The square root of 3555421384 is about 59627.3543266847. The cubic root of 3555421384 is about 1526.2664579850.

The spelling of 3555421384 in words is "three billion, five hundred fifty-five million, four hundred twenty-one thousand, three hundred eighty-four".