7165420 has 48 divisors (see below), whose sum is σ = 16164288. Its totient is φ = 2661120.

The previous prime is 7165409. The next prime is 7165421. The reversal of 7165420 is 245617.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7165421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16810 + ... + 17230.

It is an arithmetic number, because the mean of its divisors is an integer number (336756).

Almost surely, 2^7165420 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 7165420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8082144).

7165420 is an abundant number, since it is smaller than the sum of its proper divisors (8998868).

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

7165420 is a wasteful number, since it uses less digits than its factorization.

7165420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 490 (or 488 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 7165420 is about 2676.8302150118. The cubic root of 7165420 is about 192.7882452961.

The spelling of 7165420 in words is "seven million, one hundred sixty-five thousand, four hundred twenty".