3603042421 has 4 divisors (see below), whose sum is σ = 3930591744. Its totient is φ = 3275493100.

The previous prime is 3603042413. The next prime is 3603042431. The reversal of 3603042421 is 1242403063.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 3603042421 - 2³ = 3603042413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3603042431) 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, 163774645 + ... + 163774666.

It is an arithmetic number, because the mean of its divisors is an integer number (982647936).

Almost surely, 2^3603042421 is an apocalyptic number.

It is an amenable number.

3603042421 is a deficient number, since it is larger than the sum of its proper divisors (327549323).

3603042421 is a wasteful number, since it uses less digits than its factorization.

3603042421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327549322.

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 3603042421 is about 60025.3481539258. The cubic root of 3603042421 is about 1533.0504906092.

Adding to 3603042421 its reverse (1242403063), we get a palindrome (4845445484).

The spelling of 3603042421 in words is "three billion, six hundred three million, forty-two thousand, four hundred twenty-one".