801440340 has 24 divisors (see below), whose sum is σ = 2244033120. Its totient is φ = 213717408.

The previous prime is 801440329. The next prime is 801440357. The reversal of 801440340 is 43044108.

It is a self number, because there is not a number n which added to its sum of digits gives 801440340.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6678610 + ... + 6678729.

It is an arithmetic number, because the mean of its divisors is an integer number (93501380).

Almost surely, 2^801440340 is an apocalyptic number.

It is an amenable number.

801440340 is an abundant number, since it is smaller than the sum of its proper divisors (1442592780).

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

801440340 is a wasteful number, since it uses less digits than its factorization.

801440340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13357351 (or 13357349 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 801440340 is about 28309.7216517577. The cubic root of 801440340 is about 928.8745548761.

Adding to 801440340 its reverse (43044108), we get a palindrome (844484448).

The spelling of 801440340 in words is "eight hundred one million, four hundred forty thousand, three hundred forty".