4440021023402 has 8 divisors (see below), whose sum is σ = 6669425093700. Its totient is φ = 2216879325504.

The previous prime is 4440021023387. The next prime is 4440021023441. The reversal of 4440021023402 is 2043201200444.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 4420333846681 + 19687176721 = 2102459^2 + 140311^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1565591327 + ... + 1565594162.

Almost surely, 2^{4440021023402} is an apocalyptic number.

4440021023402 is a deficient number, since it is larger than the sum of its proper divisors (2229404070298).

4440021023402 is a wasteful number, since it uses less digits than its factorization.

4440021023402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3131186200.

The product of its (nonzero) digits is 6144, while the sum is 26.

Adding to 4440021023402 its reverse (2043201200444), we get a palindrome (6483222223846).

The spelling of 4440021023402 in words is "four trillion, four hundred forty billion, twenty-one million, twenty-three thousand, four hundred two".