42351442 has 16 divisors (see below), whose sum is σ = 74374272. Its totient is φ = 17707680.

The previous prime is 42351427. The next prime is 42351457. The reversal of 42351442 is 24415324.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (42351427) and next prime (42351457).

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, 36318 + ... + 37465.

It is an arithmetic number, because the mean of its divisors is an integer number (4648392).

Almost surely, 2^42351442 is an apocalyptic number.

42351442 is a deficient number, since it is larger than the sum of its proper divisors (32022830).

42351442 is a wasteful number, since it uses less digits than its factorization.

42351442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73833.

The product of its digits is 3840, while the sum is 25.

The square root of 42351442 is about 6507.7985525061. The cubic root of 42351442 is about 348.5695138011.

Adding to 42351442 its reverse (24415324), we get a palindrome (66766766).

The spelling of 42351442 in words is "forty-two million, three hundred fifty-one thousand, four hundred forty-two".