42355399 has 8 divisors (see below), whose sum is σ = 43994160. Its totient is φ = 40728576.

The previous prime is 42355309. The next prime is 42355409. The reversal of 42355399 is 99355324.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42355399 - 2⁹ = 42354887 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42355309) 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, 4612 + ... + 10294.

It is an arithmetic number, because the mean of its divisors is an integer number (5499270).

Almost surely, 2^42355399 is an apocalyptic number.

42355399 is a deficient number, since it is larger than the sum of its proper divisors (1638761).

42355399 is a wasteful number, since it uses less digits than its factorization.

42355399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5969.

The product of its digits is 145800, while the sum is 40.

The square root of 42355399 is about 6508.1025652643. The cubic root of 42355399 is about 348.5803693670.

The spelling of 42355399 in words is "forty-two million, three hundred fifty-five thousand, three hundred ninety-nine".