4247921532 has 24 divisors (see below), whose sum is σ = 9916377856. Its totient is φ = 1415322288.

The previous prime is 4247921519. The next prime is 4247921549. The reversal of 4247921532 is 2351297424.

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, 53908 + ... + 106779.

Almost surely, 2^4247921532 is an apocalyptic number.

It is an amenable number.

4247921532 is an abundant number, since it is smaller than the sum of its proper divisors (5668456324).

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

4247921532 is a wasteful number, since it uses less digits than its factorization.

4247921532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162897 (or 162895 counting only the distinct ones).

The product of its digits is 120960, while the sum is 39.

The square root of 4247921532 is about 65176.0809806788. The cubic root of 4247921532 is about 1619.5418015241.

The spelling of 4247921532 in words is "four billion, two hundred forty-seven million, nine hundred twenty-one thousand, five hundred thirty-two".