4257391072 has 48 divisors (see below), whose sum is σ = 9148978944. Its totient is φ = 1934064000.

The previous prime is 4257391063. The next prime is 4257391097. The reversal of 4257391072 is 2701937524.

4257391072 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 1170697 + ... + 1174327.

It is an arithmetic number, because the mean of its divisors is an integer number (190603728).

Almost surely, 2^4257391072 is an apocalyptic number.

It is an amenable number.

4257391072 is an abundant number, since it is smaller than the sum of its proper divisors (4891587872).

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

4257391072 is a wasteful number, since it uses less digits than its factorization.

4257391072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6983 (or 6975 counting only the distinct ones).

The product of its (nonzero) digits is 105840, while the sum is 40.

The square root of 4257391072 is about 65248.6863622556. The cubic root of 4257391072 is about 1620.7443452352.

The spelling of 4257391072 in words is "four billion, two hundred fifty-seven million, three hundred ninety-one thousand, seventy-two".