303442430040 has 112 divisors (see below), whose sum is σ = 1023650024400. Its totient is φ = 80917973568.

The previous prime is 303442430033. The next prime is 303442430069. The reversal of 303442430040 is 40034244303.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 303442429986 and 303442430013.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 5173900 + ... + 5232219.

Almost surely, 2^303442430040 is an apocalyptic number.

303442430040 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

303442430040 is an abundant number, since it is smaller than the sum of its proper divisors (720207594360).

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

303442430040 is a wasteful number, since it uses less digits than its factorization.

303442430040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10406148 (or 10406129 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 27.

Adding to 303442430040 its reverse (40034244303), we get a palindrome (343476674343).

The spelling of 303442430040 in words is "three hundred three billion, four hundred forty-two million, four hundred thirty thousand, forty".