4212043440 has 160 divisors (see below), whose sum is σ = 14457574656. Its totient is φ = 1005818880.

The previous prime is 4212043427. The next prime is 4212043477. The reversal of 4212043440 is 443402124.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 4212043440.

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, 164974 + ... + 188786.

Almost surely, 2^4212043440 is an apocalyptic number.

4212043440 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 4212043440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7228787328).

4212043440 is an abundant number, since it is smaller than the sum of its proper divisors (10245531216).

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

4212043440 is a wasteful number, since it uses less digits than its factorization.

4212043440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23907 (or 23901 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 4212043440 is about 64900.2576266073. The cubic root of 4212043440 is about 1614.9693355244.

Adding to 4212043440 its reverse (443402124), we get a palindrome (4655445564).

The spelling of 4212043440 in words is "four billion, two hundred twelve million, forty-three thousand, four hundred forty".