42008650 has 24 divisors (see below), whose sum is σ = 78330924. Its totient is φ = 16761600.

The previous prime is 42008621. The next prime is 42008671. The reversal of 42008650 is 5680024.

It can be written as a sum of positive squares in 6 ways, for example, as 5248681 + 36759969 = 2291^2 + 6063^2 .

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

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, 26274 + ... + 27826.

Almost surely, 2^42008650 is an apocalyptic number.

42008650 is a deficient number, since it is larger than the sum of its proper divisors (36322274).

42008650 is a wasteful number, since it uses less digits than its factorization.

42008650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2106 (or 2101 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 42008650 is about 6481.4080260388. The cubic root of 42008650 is about 347.6265260494.

Adding to 42008650 its reverse (5680024), we get a palindrome (47688674).

The spelling of 42008650 in words is "forty-two million, eight thousand, six hundred fifty".