42257950 has 24 divisors (see below), whose sum is σ = 89829072. Its totient is φ = 14488320.

The previous prime is 42257947. The next prime is 42257951. The reversal of 42257950 is 5975224.

It is a hoax number, since the sum of its digits (34) 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 (42257951) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 60019 + ... + 60718.

It is an arithmetic number, because the mean of its divisors is an integer number (3742878).

Almost surely, 2^42257950 is an apocalyptic number.

42257950 is an abundant number, since it is smaller than the sum of its proper divisors (47571122).

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

42257950 is a wasteful number, since it uses less digits than its factorization.

42257950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120756 (or 120751 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 34.

The square root of 42257950 is about 6500.6115096966. The cubic root of 42257950 is about 348.3128324944.

The spelling of 42257950 in words is "forty-two million, two hundred fifty-seven thousand, nine hundred fifty".