3644320242 has 16 divisors (see below), whose sum is σ = 7291655712. Its totient is φ = 1214270880.

The previous prime is 3644320241. The next prime is 3644320283. The reversal of 3644320242 is 2420234463.

It is not an unprimeable number, because it can be changed into a prime (3644320241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109768 + ... + 139059.

It is an arithmetic number, because the mean of its divisors is an integer number (455728482).

Almost surely, 2^3644320242 is an apocalyptic number.

3644320242 is an abundant number, since it is smaller than the sum of its proper divisors (3647335470).

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

3644320242 is a wasteful number, since it uses less digits than its factorization.

3644320242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251273.

The product of its (nonzero) digits is 27648, while the sum is 30.

The square root of 3644320242 is about 60368.2055555737. The cubic root of 3644320242 is about 1538.8826777626.

The spelling of 3644320242 in words is "three billion, six hundred forty-four million, three hundred twenty thousand, two hundred forty-two".