7140836 has 6 divisors (see below), whose sum is σ = 12496470. Its totient is φ = 3570416.

The previous prime is 7140823. The next prime is 7140841. The reversal of 7140836 is 6380417.

7140836 is nontrivially palindromic in base 13.

It can be written as a sum of positive squares in only one way, i.e., 7022500 + 118336 = 2650^2 + 344^2 .

It is a junction number, because it is equal to n+sod(n) for n = 7140799 and 7140808.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 892601 + ... + 892608.

It is an arithmetic number, because the mean of its divisors is an integer number (2082745).

Almost surely, 2^7140836 is an apocalyptic number.

It is an amenable number.

7140836 is a deficient number, since it is larger than the sum of its proper divisors (5355634).

7140836 is a wasteful number, since it uses less digits than its factorization.

7140836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1785213 (or 1785211 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 7140836 is about 2672.2342711671. The cubic root of 7140836 is about 192.5675121607.

The spelling of 7140836 in words is "seven million, one hundred forty thousand, eight hundred thirty-six".