42124250 has 32 divisors (see below), whose sum is σ = 90125568. Its totient is φ = 14442000.

The previous prime is 42124231. The next prime is 42124279. The reversal of 42124250 is 5242124.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10286 + ... + 13785.

It is an arithmetic number, because the mean of its divisors is an integer number (2816424).

Almost surely, 2^42124250 is an apocalyptic number.

42124250 is an abundant number, since it is smaller than the sum of its proper divisors (48001318).

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

42124250 is a wasteful number, since it uses less digits than its factorization.

42124250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24095 (or 24085 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 42124250 is about 6490.3197147752. The cubic root of 42124250 is about 347.9451018787.

Adding to 42124250 its reverse (5242124), we get a palindrome (47366374).

The spelling of 42124250 in words is "forty-two million, one hundred twenty-four thousand, two hundred fifty".