42504500 has 24 divisors (see below), whose sum is σ = 92830920. Its totient is φ = 17001600.

The previous prime is 42504491. The next prime is 42504533. The reversal of 42504500 is 540524.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1493284 + 41011216 = 1222^2 + 6404^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 42005 + ... + 43004.

It is an arithmetic number, because the mean of its divisors is an integer number (3867955).

Almost surely, 2^42504500 is an apocalyptic number.

It is an amenable number.

42504500 is an abundant number, since it is smaller than the sum of its proper divisors (50326420).

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

42504500 is a wasteful number, since it uses less digits than its factorization.

42504500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85028 (or 85016 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 20.

The square root of 42504500 is about 6519.5475303122. The cubic root of 42504500 is about 348.9889187320.

The spelling of 42504500 in words is "forty-two million, five hundred four thousand, five hundred".