7420521464 has 16 divisors (see below), whose sum is σ = 14518411920. Its totient is φ = 3548944960.

The previous prime is 7420521461. The next prime is 7420521469. The reversal of 7420521464 is 4641250247.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7420521461) 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, 20164277 + ... + 20164644.

It is an arithmetic number, because the mean of its divisors is an integer number (907400745).

Almost surely, 2^7420521464 is an apocalyptic number.

It is an amenable number.

7420521464 is a deficient number, since it is larger than the sum of its proper divisors (7097890456).

7420521464 is a wasteful number, since it uses less digits than its factorization.

7420521464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40328950 (or 40328946 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 35.

The square root of 7420521464 is about 86142.4486765961. The cubic root of 7420521464 is about 1950.4948526264.

The spelling of 7420521464 in words is "seven billion, four hundred twenty million, five hundred twenty-one thousand, four hundred sixty-four".