3942357 has 8 divisors (see below), whose sum is σ = 5270400. Its totient is φ = 2621280.

The previous prime is 3942353. The next prime is 3942359. The reversal of 3942357 is 7532493.

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 3942357 - 2² = 3942353 is a prime.

It is an Ulam number.

3942357 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3942353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 232 + ... + 2817.

It is an arithmetic number, because the mean of its divisors is an integer number (658800).

Almost surely, 2^3942357 is an apocalyptic number.

It is an amenable number.

3942357 is a deficient number, since it is larger than the sum of its proper divisors (1328043).

3942357 is a wasteful number, since it uses less digits than its factorization.

3942357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3483.

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

The square root of 3942357 is about 1985.5369550829. The cubic root of 3942357 is about 157.9738914292.

The spelling of 3942357 in words is "three million, nine hundred forty-two thousand, three hundred fifty-seven".