7420641 has 4 divisors (see below), whose sum is σ = 9894192. Its totient is φ = 4947092.

The previous prime is 7420613. The next prime is 7420643. The reversal of 7420641 is 1460247.

7420641 is digitally balanced in base 3 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 7420641 - 2⁶ = 7420577 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (7420643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1236771 + ... + 1236776.

It is an arithmetic number, because the mean of its divisors is an integer number (2473548).

Almost surely, 2^7420641 is an apocalyptic number.

It is an amenable number.

7420641 is a deficient number, since it is larger than the sum of its proper divisors (2473551).

7420641 is a wasteful number, since it uses less digits than its factorization.

7420641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2473550.

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 7420641 is about 2724.0853510858. The cubic root of 7420641 is about 195.0505325974.

Adding to 7420641 its reverse (1460247), we get a palindrome (8880888).

It can be divided in two parts, 74206 and 41, that added together give a palindrome (74247).

The spelling of 7420641 in words is "seven million, four hundred twenty thousand, six hundred forty-one".