42417250 has 32 divisors (see below), whose sum is σ = 79792128. Its totient is φ = 16884400.

The previous prime is 42417229. The next prime is 42417251. The reversal of 42417250 is 5271424.

42417250 is nontrivially palindromic in base 8.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (42417251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95529 + ... + 95971.

It is an arithmetic number, because the mean of its divisors is an integer number (2493504).

Almost surely, 2^42417250 is an apocalyptic number.

42417250 is a deficient number, since it is larger than the sum of its proper divisors (37374878).

42417250 is a wasteful number, since it uses less digits than its factorization.

42417250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 843 (or 833 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 25.

The square root of 42417250 is about 6512.8526775907. The cubic root of 42417250 is about 348.7499625305.

Adding to 42417250 its reverse (5271424), we get a palindrome (47688674).

The spelling of 42417250 in words is "forty-two million, four hundred seventeen thousand, two hundred fifty".