4245478238 has 16 divisors (see below), whose sum is σ = 6809584464. Its totient is φ = 1978089600.

The previous prime is 4245478231. The next prime is 4245478283. The reversal of 4245478238 is 8328745424.

It is a junction number, because it is equal to n+sod(n) for n = 4245478192 and 4245478201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4245478231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 614720 + ... + 621587.

It is an arithmetic number, because the mean of its divisors is an integer number (425599029).

Almost surely, 2^4245478238 is an apocalyptic number.

4245478238 is a deficient number, since it is larger than the sum of its proper divisors (2564106226).

4245478238 is a wasteful number, since it uses less digits than its factorization.

4245478238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1236427.

The product of its digits is 1720320, while the sum is 47.

The square root of 4245478238 is about 65157.3344912144. The cubic root of 4245478238 is about 1619.2312358638.

The spelling of 4245478238 in words is "four billion, two hundred forty-five million, four hundred seventy-eight thousand, two hundred thirty-eight".