42039357 has 8 divisors (see below), whose sum is σ = 57985440. Its totient is φ = 27059760.

The previous prime is 42039353. The next prime is 42039373. The reversal of 42039357 is 75393024.

It is a happy number.

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

It is not a de Polignac number, because 42039357 - 2² = 42039353 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42039353) 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, 241519 + ... + 241692.

It is an arithmetic number, because the mean of its divisors is an integer number (7248180).

Almost surely, 2^42039357 is an apocalyptic number.

It is an amenable number.

42039357 is a deficient number, since it is larger than the sum of its proper divisors (15946083).

42039357 is a wasteful number, since it uses less digits than its factorization.

42039357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 483243.

The product of its (nonzero) digits is 22680, while the sum is 33.

The square root of 42039357 is about 6483.7764458686. The cubic root of 42039357 is about 347.7112067669.

The spelling of 42039357 in words is "forty-two million, thirty-nine thousand, three hundred fifty-seven".