2234487640 has 192 divisors, whose sum is σ = 6387958080. Its totient is φ = 688512000.

The previous prime is 2234487637. The next prime is 2234487643. The reversal of 2234487640 is 467844322.

It is an interprime number because it is at equal distance from previous prime (2234487637) and next prime (2234487643).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 2234487593 and 2234487602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2234487643) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3421554 + ... + 3422206.

It is an arithmetic number, because the mean of its divisors is an integer number (33270615).

Almost surely, 2^2234487640 is an apocalyptic number.

2234487640 is a gapful number since it is divisible by the number (20) 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 2234487640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3193979040).

2234487640 is an abundant number, since it is smaller than the sum of its proper divisors (4153470440).

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

2234487640 is a wasteful number, since it uses less digits than its factorization.

2234487640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 794 (or 779 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 40.

The square root of 2234487640 is about 47270.3674620792. The cubic root of 2234487640 is about 1307.3523510837.

The spelling of 2234487640 in words is "two billion, two hundred thirty-four million, four hundred eighty-seven thousand, six hundred forty".