7112640 has 112 divisors (see below), whose sum is σ = 23408640. Its totient is φ = 1827840.

The previous prime is 7112603. The next prime is 7112657. The reversal of 7112640 is 462117.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29641 + ... + 29879.

Almost surely, 2^7112640 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7112640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11704320).

7112640 is an abundant number, since it is smaller than the sum of its proper divisors (16296000).

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

7112640 is a wasteful number, since it uses less digits than its factorization.

7112640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290 (or 280 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 7112640 is about 2666.9533179267. The cubic root of 7112640 is about 192.3137232160.

Adding to 7112640 its reverse (462117), we get a palindrome (7574757).

The spelling of 7112640 in words is "seven million, one hundred twelve thousand, six hundred forty".