7142386 has 16 divisors (see below), whose sum is σ = 11176704. Its totient is φ = 3420144.

The previous prime is 7142383. The next prime is 7142413. The reversal of 7142386 is 6832417.

It is not an unprimeable number, because it can be changed into a prime (7142383) 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, 3775 + ... + 5341.

It is an arithmetic number, because the mean of its divisors is an integer number (698544).

Almost surely, 2^7142386 is an apocalyptic number.

7142386 is a deficient number, since it is larger than the sum of its proper divisors (4034318).

7142386 is a wasteful number, since it uses less digits than its factorization.

7142386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1665.

The product of its digits is 8064, while the sum is 31.

The square root of 7142386 is about 2672.5242749131. The cubic root of 7142386 is about 192.5814441452.

Adding to 7142386 its sum of digits (31), we get a palindrome (7142417).

The spelling of 7142386 in words is "seven million, one hundred forty-two thousand, three hundred eighty-six".