7420884 has 12 divisors (see below), whose sum is σ = 17315424. Its totient is φ = 2473624.

The previous prime is 7420883. The next prime is 7420913. The reversal of 7420884 is 4880247.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7420883) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 309192 + ... + 309215.

It is an arithmetic number, because the mean of its divisors is an integer number (1442952).

Almost surely, 2^7420884 is an apocalyptic number.

It is an amenable number.

7420884 is an abundant number, since it is smaller than the sum of its proper divisors (9894540).

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

7420884 is a wasteful number, since it uses less digits than its factorization.

7420884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 618414 (or 618412 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 33.

The square root of 7420884 is about 2724.1299528473. The cubic root of 7420884 is about 195.0526616481.

The spelling of 7420884 in words is "seven million, four hundred twenty thousand, eight hundred eighty-four".