42154850 has 24 divisors (see below), whose sum is σ = 79297380. Its totient is φ = 16670720.

The previous prime is 42154841. The next prime is 42154873. The reversal of 42154850 is 5845124.

It can be written as a sum of positive squares in 6 ways, for example, as 21187609 + 20967241 = 4603^2 + 4579^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 287 + ... + 9186.

Almost surely, 2^42154850 is an apocalyptic number.

42154850 is a deficient number, since it is larger than the sum of its proper divisors (37142530).

42154850 is a wasteful number, since it uses less digits than its factorization.

42154850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9574 (or 9569 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 29.

The square root of 42154850 is about 6492.6766437271. The cubic root of 42154850 is about 348.0293331948.

Adding to 42154850 its reverse (5845124), we get a palindrome (47999974).

The spelling of 42154850 in words is "forty-two million, one hundred fifty-four thousand, eight hundred fifty".