7140630 has 64 divisors (see below), whose sum is σ = 20136960. Its totient is φ = 1586304.

The previous prime is 7140611. The next prime is 7140643. The reversal of 7140630 is 360417.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 7140597 and 7140606.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 7311 + ... + 8229.

It is an arithmetic number, because the mean of its divisors is an integer number (314640).

Almost surely, 2^7140630 is an apocalyptic number.

7140630 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 7140630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10068480).

7140630 is an abundant number, since it is smaller than the sum of its proper divisors (12996330).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7140630 is a wasteful number, since it uses less digits than its factorization.

7140630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 973.

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 7140630 is about 2672.1957263644. The cubic root of 7140630 is about 192.5656604032.

The spelling of 7140630 in words is "seven million, one hundred forty thousand, six hundred thirty".