42007423 has 8 divisors (see below), whose sum is σ = 44286320. Its totient is φ = 39735360.

The previous prime is 42007397. The next prime is 42007463. The reversal of 42007423 is 32470024.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42007423 - 2⁹ = 42006911 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42007394 and 42007403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42007463) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15403 + ... + 17923.

It is an arithmetic number, because the mean of its divisors is an integer number (5535790).

Almost surely, 2^42007423 is an apocalyptic number.

42007423 is a deficient number, since it is larger than the sum of its proper divisors (2278897).

42007423 is a wasteful number, since it uses less digits than its factorization.

42007423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3417.

The product of its (nonzero) digits is 1344, while the sum is 22.

The square root of 42007423 is about 6481.3133699891. The cubic root of 42007423 is about 347.6231414933.

Adding to 42007423 its reverse (32470024), we get a palindrome (74477447).

The spelling of 42007423 in words is "forty-two million, seven thousand, four hundred twenty-three".