2320406340 has 48 divisors (see below), whose sum is σ = 7425301632. Its totient is φ = 530378496.

The previous prime is 2320406329. The next prime is 2320406371. The reversal of 2320406340 is 436040232.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 2320406340.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2761969 + ... + 2762808.

It is an arithmetic number, because the mean of its divisors is an integer number (154693784).

Almost surely, 2^2320406340 is an apocalyptic number.

2320406340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2320406340 is an abundant number, since it is smaller than the sum of its proper divisors (5104895292).

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

2320406340 is a wasteful number, since it uses less digits than its factorization.

2320406340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5524796 (or 5524794 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

The square root of 2320406340 is about 48170.5962180250. The cubic root of 2320406340 is about 1323.8984726656.

Adding to 2320406340 its reverse (436040232), we get a palindrome (2756446572).

The spelling of 2320406340 in words is "two billion, three hundred twenty million, four hundred six thousand, three hundred forty".