42501284 has 24 divisors (see below), whose sum is σ = 85142400. Its totient is φ = 18184896.

The previous prime is 42501259. The next prime is 42501287. The reversal of 42501284 is 48210524.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (42501287) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28649 + ... + 30095.

It is an arithmetic number, because the mean of its divisors is an integer number (3547600).

Almost surely, 2^42501284 is an apocalyptic number.

It is an amenable number.

42501284 is an abundant number, since it is smaller than the sum of its proper divisors (42641116).

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

42501284 is a wasteful number, since it uses less digits than its factorization.

42501284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2507 (or 2505 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 26.

The square root of 42501284 is about 6519.3008827634. The cubic root of 42501284 is about 348.9801167097.

The spelling of 42501284 in words is "forty-two million, five hundred one thousand, two hundred eighty-four".