1004420023 has 4 divisors (see below), whose sum is σ = 1005081048. Its totient is φ = 1003759000.

The previous prime is 1004419987. The next prime is 1004420029. The reversal of 1004420023 is 3200244001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3200244001 = 337 ⋅9496273.

It is a cyclic number.

It is not a de Polignac number, because 1004420023 - 2⁹ = 1004419511 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1004419979 and 1004420006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1004420029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 328228 + ... + 331273.

It is an arithmetic number, because the mean of its divisors is an integer number (251270262).

Almost surely, 2^1004420023 is an apocalyptic number.

1004420023 is a deficient number, since it is larger than the sum of its proper divisors (661025).

1004420023 is an equidigital number, since it uses as much as digits as its factorization.

1004420023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 661024.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 1004420023 is about 31692.5862466287. The cubic root of 1004420023 is about 1001.4711755810.

Adding to 1004420023 its reverse (3200244001), we get a palindrome (4204664024).

The spelling of 1004420023 in words is "one billion, four million, four hundred twenty thousand, twenty-three".