42240654 has 24 divisors (see below), whose sum is σ = 91642512. Its totient is φ = 14061600.

The previous prime is 42240641. The next prime is 42240659. The reversal of 42240654 is 45604224.

42240654 is a `hidden beast` number, since 4 + 2 + 2 + 4 + 0 + 654 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42240659) 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, 22554 + ... + 24354.

It is an arithmetic number, because the mean of its divisors is an integer number (3818438).

Almost surely, 2^42240654 is an apocalyptic number.

42240654 is an abundant number, since it is smaller than the sum of its proper divisors (49401858).

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

42240654 is a wasteful number, since it uses less digits than its factorization.

42240654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3112 (or 3109 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The square root of 42240654 is about 6499.2810371610. The cubic root of 42240654 is about 348.2653050204.

Adding to 42240654 its reverse (45604224), we get a palindrome (87844878).

The spelling of 42240654 in words is "forty-two million, two hundred forty thousand, six hundred fifty-four".