42435550 has 36 divisors (see below), whose sum is σ = 83338416. Its totient is φ = 16074000.

The previous prime is 42435541. The next prime is 42435551. The reversal of 42435550 is 5553424.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42435551) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 16875 + ... + 19225.

It is an arithmetic number, because the mean of its divisors is an integer number (2314956).

Almost surely, 2^42435550 is an apocalyptic number.

42435550 is a deficient number, since it is larger than the sum of its proper divisors (40902866).

42435550 is a wasteful number, since it uses less digits than its factorization.

42435550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2401 (or 2377 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 28.

The square root of 42435550 is about 6514.2574404148. The cubic root of 42435550 is about 348.8001088485.

Adding to 42435550 its reverse (5553424), we get a palindrome (47988974).

The spelling of 42435550 in words is "forty-two million, four hundred thirty-five thousand, five hundred fifty".