42393340 has 24 divisors (see below), whose sum is σ = 97119792. Its totient is φ = 15415680.

The previous prime is 42393317. The next prime is 42393341. The reversal of 42393340 is 4339324.

It is a junction number, because it is equal to n+sod(n) for n = 42393299 and 42393308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42393341) 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, 96129 + ... + 96568.

It is an arithmetic number, because the mean of its divisors is an integer number (4046658).

Almost surely, 2^42393340 is an apocalyptic number.

It is an amenable number.

42393340 is an abundant number, since it is smaller than the sum of its proper divisors (54726452).

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

42393340 is a wasteful number, since it uses less digits than its factorization.

42393340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192717 (or 192715 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 28.

The square root of 42393340 is about 6511.0168176714. The cubic root of 42393340 is about 348.6844217510.

The spelling of 42393340 in words is "forty-two million, three hundred ninety-three thousand, three hundred forty".