2302443640 has 32 divisors (see below), whose sum is σ = 5920570080. Its totient is φ = 789409152.

The previous prime is 2302443629. The next prime is 2302443653. The reversal of 2302443640 is 463442032.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 2302443599 and 2302443608.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4111227 + ... + 4111786.

It is an arithmetic number, because the mean of its divisors is an integer number (185017815).

Almost surely, 2^2302443640 is an apocalyptic number.

2302443640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2302443640 is an abundant number, since it is smaller than the sum of its proper divisors (3618126440).

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

2302443640 is a wasteful number, since it uses less digits than its factorization.

2302443640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8223031 (or 8223027 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 28.

The square root of 2302443640 is about 47983.7851779119. The cubic root of 2302443640 is about 1320.4734374593.

Adding to 2302443640 its reverse (463442032), we get a palindrome (2765885672).

The spelling of 2302443640 in words is "two billion, three hundred two million, four hundred forty-three thousand, six hundred forty".