42062431 has 4 divisors (see below), whose sum is σ = 42274000. Its totient is φ = 41850864.

The previous prime is 42062429. The next prime is 42062467. The reversal of 42062431 is 13426024.

It is a happy number.

42062431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42062431 - 2¹ = 42062429 is a prime.

It is a super-2 number, since 2×42062431² = 3538496203259522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42062411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105486 + ... + 105883.

It is an arithmetic number, because the mean of its divisors is an integer number (10568500).

Almost surely, 2^42062431 is an apocalyptic number.

42062431 is a deficient number, since it is larger than the sum of its proper divisors (211569).

42062431 is a wasteful number, since it uses less digits than its factorization.

42062431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211568.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 42062431 is about 6485.5555660252. Note that the first 4 decimals coincide. The cubic root of 42062431 is about 347.7748108238.

Adding to 42062431 its reverse (13426024), we get a palindrome (55488455).

The spelling of 42062431 in words is "forty-two million, sixty-two thousand, four hundred thirty-one".