4242555420 has 48 divisors (see below), whose sum is σ = 12200219808. Its totient is φ = 1100770560.

The previous prime is 4242555419. The next prime is 4242555431. The reversal of 4242555420 is 245552424.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 953311 + ... + 957750.

It is an arithmetic number, because the mean of its divisors is an integer number (254171246).

Almost surely, 2^4242555420 is an apocalyptic number.

It is an amenable number.

4242555420 is an abundant number, since it is smaller than the sum of its proper divisors (7957664388).

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

4242555420 is a wasteful number, since it uses less digits than its factorization.

4242555420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1911110 (or 1911108 counting only the distinct ones).

The product of its (nonzero) digits is 64000, while the sum is 33.

The square root of 4242555420 is about 65134.9017040787. The cubic root of 4242555420 is about 1618.8595616228.

The spelling of 4242555420 in words is "four billion, two hundred forty-two million, five hundred fifty-five thousand, four hundred twenty".