42405357 has 8 divisors (see below), whose sum is σ = 57919680. Its totient is φ = 27580640.

The previous prime is 42405347. The next prime is 42405373. The reversal of 42405357 is 75350424.

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 42405357 - 2⁸ = 42405101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42405347) 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, 172257 + ... + 172502.

It is an arithmetic number, because the mean of its divisors is an integer number (7239960).

Almost surely, 2^42405357 is an apocalyptic number.

It is an amenable number.

42405357 is a deficient number, since it is larger than the sum of its proper divisors (15514323).

42405357 is a wasteful number, since it uses less digits than its factorization.

42405357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344803.

The product of its (nonzero) digits is 16800, while the sum is 30.

The square root of 42405357 is about 6511.9395728155. The cubic root of 42405357 is about 348.7173651712.

The spelling of 42405357 in words is "forty-two million, four hundred five thousand, three hundred fifty-seven".