7420523420 has 24 divisors (see below), whose sum is σ = 15649989264. Its totient is φ = 2955468416.

The previous prime is 7420523417. The next prime is 7420523447. The reversal of 7420523420 is 243250247.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 791534 + ... + 800853.

It is an arithmetic number, because the mean of its divisors is an integer number (652082886).

Almost surely, 2^7420523420 is an apocalyptic number.

It is an amenable number.

7420523420 is an abundant number, since it is smaller than the sum of its proper divisors (8229465844).

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

7420523420 is a wasteful number, since it uses less digits than its factorization.

7420523420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1592629 (or 1592627 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 29.

The square root of 7420523420 is about 86142.4600298831. The cubic root of 7420523420 is about 1950.4950240056.

Adding to 7420523420 its reverse (243250247), we get a palindrome (7663773667).

The spelling of 7420523420 in words is "seven billion, four hundred twenty million, five hundred twenty-three thousand, four hundred twenty".