42798500 has 24 divisors (see below), whose sum is σ = 93473016. Its totient is φ = 17119200.

The previous prime is 42798493. The next prime is 42798521. The reversal of 42798500 is 589724.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 11505664 + 31292836 = 3392^2 + 5594^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42299 + ... + 43298.

It is an arithmetic number, because the mean of its divisors is an integer number (3894709).

Almost surely, 2^42798500 is an apocalyptic number.

It is an amenable number.

42798500 is an abundant number, since it is smaller than the sum of its proper divisors (50674516).

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

42798500 is a wasteful number, since it uses less digits than its factorization.

42798500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85616 (or 85604 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 42798500 is about 6542.0562516689. The cubic root of 42798500 is about 349.7917128063.

The spelling of 42798500 in words is "forty-two million, seven hundred ninety-eight thousand, five hundred".