1022404431 has 4 divisors (see below), whose sum is σ = 1363205912. Its totient is φ = 681602952.

The previous prime is 1022404403. The next prime is 1022404433. The reversal of 1022404431 is 1344042201.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1022404431 - 2⁵ = 1022404399 is a prime.

It is a super-2 number, since 2×1022404431² = 2090621641056867522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1022404398 and 1022404407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022404433) 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, 170400736 + ... + 170400741.

It is an arithmetic number, because the mean of its divisors is an integer number (340801478).

Almost surely, 2^1022404431 is an apocalyptic number.

1022404431 is a deficient number, since it is larger than the sum of its proper divisors (340801481).

1022404431 is an equidigital number, since it uses as much as digits as its factorization.

1022404431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340801480.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 1022404431 is about 31975.0595151909. The cubic root of 1022404431 is about 1007.4130544989.

Adding to 1022404431 its reverse (1344042201), we get a palindrome (2366446632).

The spelling of 1022404431 in words is "one billion, twenty-two million, four hundred four thousand, four hundred thirty-one".