42393800 has 24 divisors (see below), whose sum is σ = 98566050. Its totient is φ = 16957440.

The previous prime is 42393797. The next prime is 42393821. The reversal of 42393800 is 839324.

It can be written as a sum of positive squares in 3 ways, for example, as 19945156 + 22448644 = 4466^2 + 4738^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 105785 + ... + 106184.

Almost surely, 2^42393800 is an apocalyptic number.

42393800 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42393800 is an abundant number, since it is smaller than the sum of its proper divisors (56172250).

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

42393800 is a wasteful number, since it uses less digits than its factorization.

42393800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211985 (or 211976 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 42393800 is about 6511.0521423192. The cubic root of 42393800 is about 348.6856829102.

The spelling of 42393800 in words is "forty-two million, three hundred ninety-three thousand, eight hundred".