423457029 has 12 divisors (see below), whose sum is σ = 647640396. Its totient is φ = 265698432.

The previous prime is 423456997. The next prime is 423457033. The reversal of 423457029 is 920754324.

It can be written as a sum of positive squares in 2 ways, for example, as 333245025 + 90212004 = 18255^2 + 9498^2 .

It is not a de Polignac number, because 423457029 - 2⁵ = 423456997 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 423456984 and 423457002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423457039) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1383694 + ... + 1383999.

It is an arithmetic number, because the mean of its divisors is an integer number (53970033).

Almost surely, 2^423457029 is an apocalyptic number.

It is an amenable number.

423457029 is a deficient number, since it is larger than the sum of its proper divisors (224183367).

423457029 is a wasteful number, since it uses less digits than its factorization.

423457029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2767716 (or 2767713 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 423457029 is about 20578.0715568782. The cubic root of 423457029 is about 750.9363292303.

The spelling of 423457029 in words is "four hundred twenty-three million, four hundred fifty-seven thousand, twenty-nine".