3605221442 has 8 divisors (see below), whose sum is σ = 5408301756. Its totient is φ = 1802454192.

The previous prime is 3605221421. The next prime is 3605221447. The reversal of 3605221442 is 2441225063.

It can be written as a sum of positive squares in 2 ways, for example, as 3513999841 + 91221601 = 59279^2 + 9551^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (3605221447) 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, 46973 + ... + 97040.

Almost surely, 2^3605221442 is an apocalyptic number.

3605221442 is a deficient number, since it is larger than the sum of its proper divisors (1803080314).

3605221442 is a wasteful number, since it uses less digits than its factorization.

3605221442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156532.

The product of its (nonzero) digits is 11520, while the sum is 29.

The square root of 3605221442 is about 60043.4962506348. The cubic root of 3605221442 is about 1533.3594772585.

The spelling of 3605221442 in words is "three billion, six hundred five million, two hundred twenty-one thousand, four hundred forty-two".