1421440204004 has 24 divisors (see below), whose sum is σ = 2621106344640. Its totient is φ = 672628787424.

The previous prime is 1421440203979. The next prime is 1421440204031. The reversal of 1421440204004 is 4004020441241.

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, 9438599 + ... + 9588014.

It is an arithmetic number, because the mean of its divisors is an integer number (109212764360).

Almost surely, 2^{1421440204004} is an apocalyptic number.

It is an amenable number.

1421440204004 is a deficient number, since it is larger than the sum of its proper divisors (1199666140636).

1421440204004 is a wasteful number, since it uses less digits than its factorization.

1421440204004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19027619 (or 19027617 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 26.

Adding to 1421440204004 its reverse (4004020441241), we get a palindrome (5425460645245).

The spelling of 1421440204004 in words is "one trillion, four hundred twenty-one billion, four hundred forty million, two hundred four thousand, four".