42493888 has 14 divisors (see below), whose sum is σ = 84323936. Its totient is φ = 21246912.

The previous prime is 42493849. The next prime is 42493907. The reversal of 42493888 is 88839424.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 331920 + ... + 332047.

Almost surely, 2^42493888 is an apocalyptic number.

It is an amenable number.

42493888 is a deficient number, since it is larger than the sum of its proper divisors (41830048).

42493888 is an equidigital number, since it uses as much as digits as its factorization.

42493888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 663979 (or 663969 counting only the distinct ones).

The product of its digits is 442368, while the sum is 46.

The square root of 42493888 is about 6518.7336193466. The cubic root of 42493888 is about 348.9598725631.

The spelling of 42493888 in words is "forty-two million, four hundred ninety-three thousand, eight hundred eighty-eight".