4243890240 has 224 divisors, whose sum is σ = 15142464000. Its totient is φ = 1118785536.

The previous prime is 4243890227. The next prime is 4243890271. The reversal of 4243890240 is 420983424.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 4243890195 and 4243890204.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 766201 + ... + 771719.

Almost surely, 2^4243890240 is an apocalyptic number.

4243890240 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 4243890240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7571232000).

4243890240 is an abundant number, since it is smaller than the sum of its proper divisors (10898573760).

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

4243890240 is a wasteful number, since it uses less digits than its factorization.

4243890240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5634 (or 5618 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 36.

The square root of 4243890240 is about 65145.1474785344. The cubic root of 4243890240 is about 1619.0293224801.

The spelling of 4243890240 in words is "four billion, two hundred forty-three million, eight hundred ninety thousand, two hundred forty".