42303439684 has 27 divisors (see below), whose sum is σ = 81381643581. Its totient is φ = 19226779440.

The previous prime is 42303439679. The next prime is 42303439687. The reversal of 42303439684 is 48693430324.

The square root of 42303439684 is 205678.

It is a perfect power (a square), and thus also a powerful number.

42303439684 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 36642382084 + 5661057600 = 191422^2 + 75240^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42303439687) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 4520242 + ... + 4529590.

Almost surely, 2^42303439684 is an apocalyptic number.

42303439684 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

42303439684 is the 205678-th square number.

It is an amenable number.

42303439684 is a deficient number, since it is larger than the sum of its proper divisors (39078203897).

42303439684 is an frugal number, since it uses more digits than its factorization.

42303439684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18724 (or 9362 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 46.

The spelling of 42303439684 in words is "forty-two billion, three hundred three million, four hundred thirty-nine thousand, six hundred eighty-four".