42090430 has 16 divisors (see below), whose sum is σ = 76049280. Its totient is φ = 16772512.

The previous prime is 42090407. The next prime is 42090449. The reversal of 42090430 is 3409024.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5134 + ... + 10513.

It is an arithmetic number, because the mean of its divisors is an integer number (4753080).

Almost surely, 2^42090430 is an apocalyptic number.

42090430 is a deficient number, since it is larger than the sum of its proper divisors (33958850).

42090430 is a wasteful number, since it uses less digits than its factorization.

42090430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15923.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 42090430 is about 6487.7137729712. The cubic root of 42090430 is about 347.8519595361.

Adding to 42090430 its reverse (3409024), we get a palindrome (45499454).

The spelling of 42090430 in words is "forty-two million, ninety thousand, four hundred thirty".