4421640002 has 16 divisors (see below), whose sum is σ = 7153228152. Its totient is φ = 2037734400.

The previous prime is 4421639969. The next prime is 4421640023. The reversal of 4421640002 is 2000461244.

It can be written as a sum of positive squares in 4 ways, for example, as 4152384721 + 269255281 = 64439^2 + 16409^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 4421640002.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107999 + ... + 143202.

Almost surely, 2^4421640002 is an apocalyptic number.

4421640002 is a deficient number, since it is larger than the sum of its proper divisors (2731588150).

4421640002 is a wasteful number, since it uses less digits than its factorization.

4421640002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251893.

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 4421640002 is about 66495.4133906994. The cubic root of 4421640002 is about 1641.3245300574.

The spelling of 4421640002 in words is "four billion, four hundred twenty-one million, six hundred forty thousand, two".