42662240 has 48 divisors (see below), whose sum is σ = 105180768. Its totient is φ = 16321536.

The previous prime is 42662233. The next prime is 42662287. The reversal of 42662240 is 4226624.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2117 + ... + 9476.

It is an arithmetic number, because the mean of its divisors is an integer number (2191266).

Almost surely, 2^42662240 is an apocalyptic number.

42662240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42662240 is an abundant number, since it is smaller than the sum of its proper divisors (62518528).

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

42662240 is a wasteful number, since it uses less digits than its factorization.

42662240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11631 (or 11623 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

The square root of 42662240 is about 6531.6337925514. The cubic root of 42662240 is about 349.4201009468.

Adding to 42662240 its reverse (4226624), we get a palindrome (46888864).

The spelling of 42662240 in words is "forty-two million, six hundred sixty-two thousand, two hundred forty".