42540480 has 84 divisors (see below), whose sum is σ = 146331432. Its totient is φ = 11343360.

The previous prime is 42540461. The next prime is 42540497. The reversal of 42540480 is 8404524.

42540480 is a `hidden beast` number, since 42 + 540 + 4 + 80 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4506 + ... + 10265.

Almost surely, 2^42540480 is an apocalyptic number.

42540480 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42540480 is an abundant number, since it is smaller than the sum of its proper divisors (103790952).

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

42540480 is a wasteful number, since it uses less digits than its factorization.

42540480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14794 (or 14781 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 27.

The square root of 42540480 is about 6522.3063405516. The cubic root of 42540480 is about 349.0873638371.

The spelling of 42540480 in words is "forty-two million, five hundred forty thousand, four hundred eighty".