1002404401 has 8 divisors (see below), whose sum is σ = 1041626880. Its totient is φ = 963492432.

The previous prime is 1002404369. The next prime is 1002404411. The reversal of 1002404401 is 1044042001.

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

It is a cyclic number.

It is not a de Polignac number, because 1002404401 - 2⁵ = 1002404369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1002404411) 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, 71035 + ... + 83968.

It is an arithmetic number, because the mean of its divisors is an integer number (130203360).

Almost surely, 2^1002404401 is an apocalyptic number.

It is an amenable number.

1002404401 is a deficient number, since it is larger than the sum of its proper divisors (39222479).

1002404401 is a wasteful number, since it uses less digits than its factorization.

1002404401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155255.

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 1002404401 is about 31660.7706949784. The cubic root of 1002404401 is about 1000.8008255073.

Adding to 1002404401 its reverse (1044042001), we get a palindrome (2046446402).

The spelling of 1002404401 in words is "one billion, two million, four hundred four thousand, four hundred one".