7742424 has 32 divisors (see below), whose sum is σ = 20376000. Its totient is φ = 2444832.

The previous prime is 7742419. The next prime is 7742437. The reversal of 7742424 is 4242477.

7742424 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 7742391 and 7742400.

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, 8034 + ... + 8945.

It is an arithmetic number, because the mean of its divisors is an integer number (636750).

Almost surely, 2^7742424 is an apocalyptic number.

It is an amenable number.

7742424 is an abundant number, since it is smaller than the sum of its proper divisors (12633576).

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

7742424 is a wasteful number, since it uses less digits than its factorization.

7742424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17007 (or 17003 counting only the distinct ones).

The product of its digits is 12544, while the sum is 30.

The square root of 7742424 is about 2782.5211589492. The cubic root of 7742424 is about 197.8300756179.

The spelling of 7742424 in words is "seven million, seven hundred forty-two thousand, four hundred twenty-four".