803720040 has 32 divisors (see below), whose sum is σ = 2411160480. Its totient is φ = 214325312.

The previous prime is 803720039. The next prime is 803720051. The reversal of 803720040 is 40027308.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3348714 + ... + 3348953.

It is an arithmetic number, because the mean of its divisors is an integer number (75348765).

Almost surely, 2^803720040 is an apocalyptic number.

It is an amenable number.

803720040 is an abundant number, since it is smaller than the sum of its proper divisors (1607440440).

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

803720040 is a wasteful number, since it uses less digits than its factorization.

803720040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6697681 (or 6697677 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 803720040 is about 28349.9566137234. The cubic root of 803720040 is about 929.7544501455.

Adding to 803720040 its reverse (40027308), we get a palindrome (843747348).

The spelling of 803720040 in words is "eight hundred three million, seven hundred twenty thousand, forty".