42257796 has 36 divisors (see below), whose sum is σ = 114701328. Its totient is φ = 12073488.

The previous prime is 42257753. The next prime is 42257797. The reversal of 42257796 is 69775224.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (42257797) 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, 35346 + ... + 36521.

It is an arithmetic number, because the mean of its divisors is an integer number (3186148).

Almost surely, 2^42257796 is an apocalyptic number.

It is an amenable number.

42257796 is an abundant number, since it is smaller than the sum of its proper divisors (72443532).

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

42257796 is a wasteful number, since it uses less digits than its factorization.

42257796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71888 (or 71879 counting only the distinct ones).

The product of its digits is 211680, while the sum is 42.

The square root of 42257796 is about 6500.5996646463. The cubic root of 42257796 is about 348.3124093768.

It can be divided in two parts, 4225 and 7796, that added together give a palindrome (12021).

The spelling of 42257796 in words is "forty-two million, two hundred fifty-seven thousand, seven hundred ninety-six".