7120424 has 8 divisors (see below), whose sum is σ = 13350810. Its totient is φ = 3560208.

The previous prime is 7120423. The next prime is 7120447. The reversal of 7120424 is 4240217.

It can be written as a sum of positive squares in only one way, i.e., 6604900 + 515524 = 2570^2 + 718^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 7120396 and 7120405.

It is not an unprimeable number, because it can be changed into a prime (7120423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 445019 + ... + 445034.

Almost surely, 2^7120424 is an apocalyptic number.

It is an amenable number.

7120424 is a deficient number, since it is larger than the sum of its proper divisors (6230386).

7120424 is a wasteful number, since it uses less digits than its factorization.

7120424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 890059 (or 890055 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 20.

The square root of 7120424 is about 2668.4122620015. The cubic root of 7120424 is about 192.3838530254.

The spelling of 7120424 in words is "seven million, one hundred twenty thousand, four hundred twenty-four".