4257420742 has 8 divisors (see below), whose sum is σ = 6386456232. Its totient is φ = 2128602000.

The previous prime is 4257420733. The next prime is 4257420749. The reversal of 4257420742 is 2470247524.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4257420749) 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, 10242 + ... + 92842.

It is an arithmetic number, because the mean of its divisors is an integer number (798307029).

Almost surely, 2^4257420742 is an apocalyptic number.

4257420742 is a deficient number, since it is larger than the sum of its proper divisors (2129035490).

4257420742 is a wasteful number, since it uses less digits than its factorization.

4257420742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108374.

The product of its (nonzero) digits is 125440, while the sum is 37.

The square root of 4257420742 is about 65248.9137227586. The cubic root of 4257420742 is about 1620.7481102462.

The spelling of 4257420742 in words is "four billion, two hundred fifty-seven million, four hundred twenty thousand, seven hundred forty-two".