1046423009 has 4 divisors (see below), whose sum is σ = 1046656704. Its totient is φ = 1046189316.

The previous prime is 1046423003. The next prime is 1046423039. The reversal of 1046423009 is 9003246401.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9003246401 = 17683 ⋅509147.

It is a cyclic number.

It is not a de Polignac number, because 1046423009 - 2⁸ = 1046422753 is a prime.

It is a super-2 number, since 2×1046423009² = 2190002227529228162, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1046423003) 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, 109997 + ... + 119130.

It is an arithmetic number, because the mean of its divisors is an integer number (261664176).

Almost surely, 2^1046423009 is an apocalyptic number.

It is an amenable number.

1046423009 is a deficient number, since it is larger than the sum of its proper divisors (233695).

1046423009 is an equidigital number, since it uses as much as digits as its factorization.

1046423009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233694.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 1046423009 is about 32348.4622354757. The cubic root of 1046423009 is about 1015.2408720804.

The spelling of 1046423009 in words is "one billion, forty-six million, four hundred twenty-three thousand, nine".