303440130 has 48 divisors (see below), whose sum is σ = 901652544. Its totient is φ = 69357600.

The previous prime is 303440129. The next prime is 303440141. The reversal of 303440130 is 31044303.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 240196 + ... + 241455.

It is an arithmetic number, because the mean of its divisors is an integer number (18784428).

Almost surely, 2^303440130 is an apocalyptic number.

303440130 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

303440130 is an abundant number, since it is smaller than the sum of its proper divisors (598212414).

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

303440130 is a wasteful number, since it uses less digits than its factorization.

303440130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 481671 (or 481668 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 303440130 is about 17419.5330017771. The cubic root of 303440130 is about 671.9820493717.

Adding to 303440130 its reverse (31044303), we get a palindrome (334484433).

The spelling of 303440130 in words is "three hundred three million, four hundred forty thousand, one hundred thirty".