42206430 has 32 divisors (see below), whose sum is σ = 115766784. Its totient is φ = 9647136.

The previous prime is 42206419. The next prime is 42206441. The reversal of 42206430 is 3460224.

It is an interprime number because it is at equal distance from previous prime (42206419) and next prime (42206441).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 42206397 and 42206406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100282 + ... + 100701.

It is an arithmetic number, because the mean of its divisors is an integer number (3617712).

Almost surely, 2^42206430 is an apocalyptic number.

42206430 is an abundant number, since it is smaller than the sum of its proper divisors (73560354).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42206430 is a wasteful number, since it uses less digits than its factorization.

42206430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201000.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 42206430 is about 6496.6475970303. The cubic root of 42206430 is about 348.1712230471.

Adding to 42206430 its reverse (3460224), we get a palindrome (45666654).

The spelling of 42206430 in words is "forty-two million, two hundred six thousand, four hundred thirty".