7424890 has 16 divisors (see below), whose sum is σ = 14580000. Its totient is φ = 2699920.

The previous prime is 7424887. The next prime is 7424897. The reversal of 7424890 is 984247.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (7424897) 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 7 ways as a sum of consecutive naturals, for example, 33640 + ... + 33859.

It is an arithmetic number, because the mean of its divisors is an integer number (911250).

Almost surely, 2^7424890 is an apocalyptic number.

7424890 is a deficient number, since it is larger than the sum of its proper divisors (7155110).

7424890 is a wasteful number, since it uses less digits than its factorization.

7424890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67517.

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 7424890 is about 2724.8651342773. The cubic root of 7424890 is about 195.0877536219.

It can be divided in two parts, 74 and 24890, that added together give a square (24964 = 158²).

The spelling of 7424890 in words is "seven million, four hundred twenty-four thousand, eight hundred ninety".