7421916 has 24 divisors (see below), whose sum is σ = 18071424. Its totient is φ = 2366320.

The previous prime is 7421891. The next prime is 7421923. The reversal of 7421916 is 6191247.

It is a happy number.

It is a super-2 number, since 2×7421916² = 110169674222112, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13170 + ... + 13721.

It is an arithmetic number, because the mean of its divisors is an integer number (752976).

Almost surely, 2^7421916 is an apocalyptic number.

It is an amenable number.

7421916 is an abundant number, since it is smaller than the sum of its proper divisors (10649508).

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

7421916 is a wasteful number, since it uses less digits than its factorization.

7421916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26921 (or 26919 counting only the distinct ones).

The product of its digits is 3024, while the sum is 30.

The square root of 7421916 is about 2724.3193645386. The cubic root of 7421916 is about 195.0617030245.

The spelling of 7421916 in words is "seven million, four hundred twenty-one thousand, nine hundred sixteen".