303423040 has 112 divisors (see below), whose sum is σ = 757854720. Its totient is φ = 115568640.

The previous prime is 303423031. The next prime is 303423041. The reversal of 303423040 is 40324303.

It is a junction number, because it is equal to n+sod(n) for n = 303422999 and 303423017.

It is not an unprimeable number, because it can be changed into a prime (303423041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 723951 + ... + 724369.

It is an arithmetic number, because the mean of its divisors is an integer number (6766560).

Almost surely, 2^303423040 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 303423040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (378927360).

303423040 is an abundant number, since it is smaller than the sum of its proper divisors (454431680).

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

303423040 is a wasteful number, since it uses less digits than its factorization.

303423040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 540 (or 530 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 19.

The square root of 303423040 is about 17419.0424535908. The cubic root of 303423040 is about 671.9694336059.

Adding to 303423040 its reverse (40324303), we get a palindrome (343747343).

The spelling of 303423040 in words is "three hundred three million, four hundred twenty-three thousand, forty".