4235142520 has 48 divisors (see below), whose sum is σ = 11084842440. Its totient is φ = 1452048192.

The previous prime is 4235142517. The next prime is 4235142539. The reversal of 4235142520 is 252415324.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1078434 + ... + 1082353.

Almost surely, 2^4235142520 is an apocalyptic number.

4235142520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4235142520 is an abundant number, since it is smaller than the sum of its proper divisors (6849699920).

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

4235142520 is a wasteful number, since it uses less digits than its factorization.

4235142520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2160812 (or 2160801 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 4235142520 is about 65077.9726174687. The cubic root of 4235142520 is about 1617.9161490647.

Adding to 4235142520 its reverse (252415324), we get a palindrome (4487557844).

The spelling of 4235142520 in words is "four billion, two hundred thirty-five million, one hundred forty-two thousand, five hundred twenty".