42470423 has 2 divisors, whose sum is σ = 42470424. Its totient is φ = 42470422.

The previous prime is 42470419. The next prime is 42470459. The reversal of 42470423 is 32407424.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42470423 - 2² = 42470419 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42470392 and 42470401.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42470473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21235211 + 21235212.

It is an arithmetic number, because the mean of its divisors is an integer number (21235212).

Almost surely, 2^42470423 is an apocalyptic number.

42470423 is a deficient number, since it is larger than the sum of its proper divisors (1).

42470423 is an equidigital number, since it uses as much as digits as its factorization.

42470423 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5376, while the sum is 26.

The square root of 42470423 is about 6516.9335580471. The cubic root of 42470423 is about 348.8956291981.

Adding to 42470423 its reverse (32407424), we get a palindrome (74877847).

The spelling of 42470423 in words is "forty-two million, four hundred seventy thousand, four hundred twenty-three".