42470429 has 6 divisors (see below), whose sum is σ = 43118334. Its totient is φ = 41832120.

The previous prime is 42470423. The next prime is 42470459. The reversal of 42470429 is 92407424.

It can be written as a sum of positive squares in only one way, i.e., 39664804 + 2805625 = 6298^2 + 1675^2 .

It is not a de Polignac number, because 42470429 - 2⁸ = 42470173 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 42470395 and 42470404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42470423) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 242 + ... + 9219.

It is an arithmetic number, because the mean of its divisors is an integer number (7186389).

Almost surely, 2^42470429 is an apocalyptic number.

It is an amenable number.

42470429 is a deficient number, since it is larger than the sum of its proper divisors (647905).

42470429 is an frugal number, since it uses more digits than its factorization.

42470429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9595 (or 9528 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 42470429 is about 6516.9340183863. The cubic root of 42470429 is about 348.8956456282.

The spelling of 42470429 in words is "forty-two million, four hundred seventy thousand, four hundred twenty-nine".