4203155440 has 40 divisors (see below), whose sum is σ = 10660732848. Its totient is φ = 1528419840.

The previous prime is 4203155419. The next prime is 4203155449. The reversal of 4203155440 is 445513024.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 4203155399 and 4203155408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4203155449) 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, 2387277 + ... + 2389036.

Almost surely, 2^4203155440 is an apocalyptic number.

4203155440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4203155440 is an abundant number, since it is smaller than the sum of its proper divisors (6457577408).

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

4203155440 is a wasteful number, since it uses less digits than its factorization.

4203155440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4776337 (or 4776331 counting only the distinct ones).

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

The square root of 4203155440 is about 64831.7471614023. The cubic root of 4203155440 is about 1613.8325986318.

Adding to 4203155440 its reverse (445513024), we get a palindrome (4648668464).

The spelling of 4203155440 in words is "four billion, two hundred three million, one hundred fifty-five thousand, four hundred forty".