42274240 has 112 divisors (see below), whose sum is σ = 112471200. Its totient is φ = 15040512.

The previous prime is 42274217. The next prime is 42274247. The reversal of 42274240 is 4247224.

It is a happy number.

It is a super-2 number, since 2×42274240² = 3574222735155200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42274247) 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, 103156 + ... + 103564.

Almost surely, 2^42274240 is an apocalyptic number.

42274240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42274240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56235600).

42274240 is an abundant number, since it is smaller than the sum of its proper divisors (70196960).

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

42274240 is a wasteful number, since it uses less digits than its factorization.

42274240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 462 (or 452 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 25.

The square root of 42274240 is about 6501.8643480159. The cubic root of 42274240 is about 348.3575837353.

The spelling of 42274240 in words is "forty-two million, two hundred seventy-four thousand, two hundred forty".