42364031 has 4 divisors (see below), whose sum is σ = 42533064. Its totient is φ = 42195000.

The previous prime is 42364027. The next prime is 42364043. The reversal of 42364031 is 13046324.

It is a happy number.

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 42364031 - 2² = 42364027 is a prime.

It is a super-2 number, since 2×42364031² = 3589422245137922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42363988 and 42364006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42366031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84140 + ... + 84641.

It is an arithmetic number, because the mean of its divisors is an integer number (10633266).

Almost surely, 2^42364031 is an apocalyptic number.

42364031 is a deficient number, since it is larger than the sum of its proper divisors (169033).

42364031 is a wasteful number, since it uses less digits than its factorization.

42364031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169032.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 42364031 is about 6508.7657048015. The cubic root of 42364031 is about 348.6040479018.

The spelling of 42364031 in words is "forty-two million, three hundred sixty-four thousand, thirty-one".