7289420 has 12 divisors (see below), whose sum is σ = 15307824. Its totient is φ = 2915760.

The previous prime is 7289377. The next prime is 7289423. The reversal of 7289420 is 249827.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (7289423) 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, 182216 + ... + 182255.

It is an arithmetic number, because the mean of its divisors is an integer number (1275652).

Almost surely, 2^7289420 is an apocalyptic number.

It is an amenable number.

7289420 is an abundant number, since it is smaller than the sum of its proper divisors (8018404).

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

7289420 is a wasteful number, since it uses less digits than its factorization.

7289420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364480 (or 364478 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 7289420 is about 2699.8925904561. The cubic root of 7289420 is about 193.8939796944.

The spelling of 7289420 in words is "seven million, two hundred eighty-nine thousand, four hundred twenty".