4018748240 has 120 divisors (see below), whose sum is σ = 10399974984. Its totient is φ = 1435622400.

The previous prime is 4018748233. The next prime is 4018748257. The reversal of 4018748240 is 428478104.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 81938704 + 3936809536 = 9052^2 + 62744^2 .

It is a junction number, because it is equal to n+sod(n) for n = 4018748194 and 4018748203.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 997430 + ... + 1001450.

Almost surely, 2^4018748240 is an apocalyptic number.

4018748240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4018748240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5199987492).

4018748240 is an abundant number, since it is smaller than the sum of its proper divisors (6381226744).

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

4018748240 is a wasteful number, since it uses less digits than its factorization.

4018748240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4109 (or 4072 counting only the distinct ones).

The product of its (nonzero) digits is 57344, while the sum is 38.

The square root of 4018748240 is about 63393.5977840034. The cubic root of 4018748240 is about 1589.8772685879.

The spelling of 4018748240 in words is "four billion, eighteen million, seven hundred forty-eight thousand, two hundred forty".