7140736 has 16 divisors (see below), whose sum is σ = 14225940. Its totient is φ = 3570304.

The previous prime is 7140733. The next prime is 7140767. The reversal of 7140736 is 6370417.

It is a tau number, because it is divible by the number of its divisors (16).

It is a super-2 number, since 2×7140736² = 101980221243392, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7140733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27766 + ... + 28021.

Almost surely, 2^7140736 is an apocalyptic number.

It is an amenable number.

7140736 is a deficient number, since it is larger than the sum of its proper divisors (7085204).

7140736 is an equidigital number, since it uses as much as digits as its factorization.

7140736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55801 (or 55789 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 28.

The square root of 7140736 is about 2672.2155601673. The cubic root of 7140736 is about 192.5666132537.

The spelling of 7140736 in words is "seven million, one hundred forty thousand, seven hundred thirty-six".