42435140 has 24 divisors (see below), whose sum is σ = 97215552. Its totient is φ = 15430880.

The previous prime is 42435137. The next prime is 42435157. The reversal of 42435140 is 4153424.

It is a super-2 number, since 2×42435140² = 3601482213639200, which contains 22 as substring.

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, 96224 + ... + 96663.

It is an arithmetic number, because the mean of its divisors is an integer number (4050648).

Almost surely, 2^42435140 is an apocalyptic number.

It is an amenable number.

42435140 is an abundant number, since it is smaller than the sum of its proper divisors (54780412).

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

42435140 is a wasteful number, since it uses less digits than its factorization.

42435140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192907 (or 192905 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 42435140 is about 6514.2259709040. The cubic root of 42435140 is about 348.7989855096.

Adding to 42435140 its reverse (4153424), we get a palindrome (46588564).

The spelling of 42435140 in words is "forty-two million, four hundred thirty-five thousand, one hundred forty".