423276456409 has 15 divisors (see below), whose sum is σ = 438032675135. Its totient is φ = 409017321960.

The previous prime is 423276456359. The next prime is 423276456413. The reversal of 423276456409 is 904654672324.

The square root of 423276456409 is 650597.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 420779255625 + 2497200784 = 648675^2 + 49972^2 .

It is not a de Polignac number, because 423276456409 - 2²³ = 423268067801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (423276456509) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 625223379 + ... + 625224055.

Almost surely, 2^423276456409 is an apocalyptic number.

423276456409 is the 650597-th square number.

423276456409 is the 325299-th centered octagonal number.

It is an amenable number.

423276456409 is a deficient number, since it is larger than the sum of its proper divisors (14756218726).

423276456409 is an frugal number, since it uses more digits than its factorization.

423276456409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1478 (or 708 counting only the distinct ones).

The product of its (nonzero) digits is 8709120, while the sum is 52.

The spelling of 423276456409 in words is "four hundred twenty-three billion, two hundred seventy-six million, four hundred fifty-six thousand, four hundred nine".