4012357 has 4 divisors (see below), whose sum is σ = 4248396. Its totient is φ = 3776320.

The previous prime is 4012339. The next prime is 4012367. The reversal of 4012357 is 7532104.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1560001 + 2452356 = 1249^2 + 1566^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4012357 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4012367) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 117994 + ... + 118027.

It is an arithmetic number, because the mean of its divisors is an integer number (1062099).

Almost surely, 2^4012357 is an apocalyptic number.

It is an amenable number.

4012357 is a deficient number, since it is larger than the sum of its proper divisors (236039).

4012357 is a wasteful number, since it uses less digits than its factorization.

4012357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236038.

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 4012357 is about 2003.0868678118. The cubic root of 4012357 is about 158.9033997828.

The spelling of 4012357 in words is "four million, twelve thousand, three hundred fifty-seven".